IT202300007341A1 - Pedal-assisted bicycle - Google Patents

Description

Patent application for industrial invention entitled:

?Pedal-assisted bicycle?

DESCRIPTION

Technical Sector

The present invention relates, in general, to a pedal-assisted bicycle.

In particular, the present invention refers to a pedal-assisted bicycle configured in such a way as to make this type of bicycle more functional and effective overall for tourism activities, such as for journeys of more than 250 km.

Art Note

Pedal-assisted bicycles are well-known, and from now on they will also be referred to, for simplicity's sake, as electric bicycles or simply bicycles.

Pedal-assisted bicycles are generally intended to allow the user to travel short distances of various types, for example less than 50 km, and to allow a user to request assistance in their pedalling by means of an electric support motor mounted on the bicycle.

The most general problems consist in the fact that the electric bicycles known to date do not fully respond to tourism needs, such as comfortable, safe use and for medium-long distances.

In fact, the most common problems with known electric bicycles, which prevent their use in a way that meets tourism needs, include at least:

- comfort not adequate for medium-long distances;

- limited autonomy;

- inadequate safety in all conditions of use, particularly on long and varied routes.

In general, the Applicant observed that the known pedal-assisted bicycles are not designed to overcome the multiple problems listed above to provide an integrated, synergic architectural solution that effectively responds to tourism needs.

Description of the Invention

The invention is defined by the appended claims.

The purpose of the present invention is a pedal-assisted bicycle that solves the many problems present in the prior art.

The pedal-assisted bicycle having the characteristics referred to in the following claims achieves this purpose.

The claims as well as the description and the figures constitute an integral part of the technical teaching provided herein regarding the invention.

The following brief description of the invention is given for the purpose of providing a basic understanding of certain aspects of the invention.

This summary description is not an extended description and as such is not intended to identify all of the key or critical elements of the invention, or to fully delineate the scope of the invention. Its sole purpose is to present some of the many concepts of the invention in a simplified and concise form so as to anticipate some of the elements present in the figures and detailed description given below.

In accordance with a feature of a preferred embodiment, the pedal-assisted bicycle comprises a frame, comprising a load-bearing beam made of carbon fibre, a front fork and a rear triangle made of aluminium, and a saddle, movably connected with respect to the frame, and controlled by an electronic device configured to adjust the position of the saddle with respect to the frame according to the operating parameters of the bicycle.

According to a further feature of a preferred embodiment, the pedal-assisted bicycle further comprises at least one or more control switches configured to adjust the position of the saddle with respect to the frame according to predefined configurations or manually desired by a user.

In accordance with another feature of a preferred embodiment, the pedal-assisted bicycle also includes a battery pack sized to ensure sufficient autonomy to make flat travel possible for at least more than 250 km.

The pedal-assisted bicycle, in accordance with preferred embodiments, also comprises tires configured so as to provide, in a central area, a first type of tread and, in lateral areas, a second type of tread, wherein the second type of tread is made with a compound that is at least 30% softer than that of the first type of tread.

Brief Description of the Figures

These and other features and advantages of the present invention will be made clear from the following description of preferred embodiments given by way of example and not limitation with the aid of the attached figures, in which elements indicated with the same or similar numerical reference indicate elements that have the same or similar functionality and construction and in which:

Fig. 1 represents an overall perspective view of the pedal-assisted bicycle in accordance with this description;

Fig. 2 represents a perspective view of the bicycle frame of Fig. 1;

Fig. 3 schematically represents a section highlighting a microprocessor circuit integrated into the bicycle in Fig. 1;

Fig. 4 schematically represents a block diagram of the microprocessor circuit of Fig. 3 and of the components connected to it;

Fig. 5 schematically represents an example of a saddle provided in the bicycle of Fig. 1;

Fig. 6 schematically represents an example of a tire provided for the bicycle in Fig. 1; and

Fig. 7 schematically represents an example of a folding handlebar provided in the bicycle of Fig. 1.

Within the scope of this description, it is intended that figures are not necessarily to scale and that terms such as: upper, lower, longitudinal, orthogonal, lateral, above, below, etc. are used in their conventional meaning unless otherwise indicated.

Description of Preferred Forms of Embodiment

As anticipated in the introductory part of this patent application, known pedal-assisted bicycles do not, in general, meet the needs of tourism which can be summarised here in the provision for a user of comfortable, safe use and with autonomy such as to guarantee, on predominantly flat routes, medium-long distances, for example at least more than 250 km.

The interventions necessary to transform a known type of electric bicycle into a bicycle that meets the needs of tourism necessarily require being applied to a plurality of electro-mechanical characteristics of the known bicycle so that such interventions contribute synergistically to obtaining a pedal-assisted bicycle that can be used for tourism activities.

In summary, the Applicant observed that interventions that only concern comfort but not safety and/or the need for autonomy for medium/long distances would not have led to the desired effect of creating a pedal-assisted bicycle for tourism activities.

Therefore, the present description of preferred embodiments proposes a set of interventions that, if applied synergistically, can allow for the creation of a pedal-assisted bicycle for tourism activities.

The following description provides a detailed description of the interventions planned in the three areas of comfort, safety and autonomy/range indicated above.

As can be easily understood by an expert in the field, it is foreseeable that the synergic effect in terms of bicycle for tourism activities can be obtained with specific interventions in at least two of the three areas, for example in the area of comfort and autonomy/range.

With reference to Fig. 1, a pedal-assisted bicycle 10, configured for touring activities in accordance with the present embodiments, comprises a frame 12, a saddle 14, at least two wheels 15 with respective tyres 16, a handlebar 18, connected to a steering pin 22a (Fig. 1 and Fig. 2), and a pair of pedals 19.

CHASSIS

In particular, the frame 12 comprises a load-bearing beam 21 (Fig. 1, Fig. 2 and Fig. 3), comprising two half-shells placed side by side and fixed together, a front fork 22 and a rear carriage 24.

In particular, the load-bearing crossbeam is made with a carbon fibre monocoque and is shaped as a load-bearing and rigid body.

As experimentally verified by the Applicant, the choice of using carbon fibre allows for a reduced weight of the main part of the frame in relation to the mechanical resistance.

As can be easily understood by a person skilled in the art, the frame 12 of the bicycle 10, in accordance with the present embodiment, must have larger geometries than those of a bicycle made in accordance with the known art.

In particular, from a construction point of view, the Applicant has foreseen that the load-bearing beam be produced in an autoclave with high-resistance and pre-impregnated carbon fibres.

More specifically, in accordance with the preferred form of construction, the load-bearing beam was made with walls with an average thickness of at least 3 mm and with cross-sections oversized with respect to a theoretical structural calculation, to ensure maximum resistance.

The front fork 22 and the rear triangle 24 are preferably made of aluminum.

In particular, the front fork 22 is made with a known parallelogram geometry and is connected to the load-bearing beam 21, in a known manner, by means of a front shock absorber 42.

The rear carriage 24 comprises two side-by-side and mirror-image arms of a known type and is connected to the load-bearing beam in a known manner, preferably by means of a pair of rear shock absorbers 44.

Preferably, the load-bearing beam 21, the front fork 22 and the rear carriage 24 are shaped according to profiles or geometries typically used in the construction of wing ribs, in order to obtain an overall frame geometry with an excellent ratio between weight and strength or rigidity of the frame.

Naturally, in accordance with other embodiments, the load-bearing beam 21, the front fork 22 and the rear carriage 24 can be shaped differently, without thereby departing from the scope of what is described and claimed.

The structure and geometry chosen for the construction of the frame are, in general, such as to confer great strength and rigidity to the frame itself 12 so as to improve the touring activity of the bicycle and provide excellent riding comfort.

The frame structure and the particular geometries provided in accordance with the preferred form of construction, allow for maximum frame strength and excellent ride comfort over medium-long distances.

Furthermore, the structure and geometry as described allow for the inclusion in bicycle 10 of all the devices and components necessary for touring activities, devices and components which are generally larger and heavier than those provided for in known pedal-assisted bicycles.

In summary, the structure and geometry described allow for a greater load to be supported than that expected in known pedal-assisted bicycles and, at the same time, contribute to better absorbing the roughness of the terrain, avoiding stress and overloading of the structure and materials.

Furthermore, from an ergonomic point of view, the structure and geometry described allow the user to be guaranteed driving safety and a feeling of comfort.

Preferably, integral or fixed to the load-bearing beam 21 and forming part of the same load-bearing structure, a storage compartment 30 is provided in which, for example, various components are included, such as a pack of rechargeable batteries 71 (Fig. 1, Fig.2 and Fig.3) and a battery charger component 72, which are thus well protected by the frame.

In accordance with the preferred embodiment, two doors, 35a and 35b, are provided on two sides, 32a and 32b, of the frame 12, for example comprising magnetic fastening elements to the respective sides, 32a and 32b, and air intakes configured to allow, respectively, ample access to the storage compartment 30 and effective cooling of the battery pack 71 and the battery charger 72.

Frame 12 includes geometries calculated to provide the user with an upright posture that improves muscle tension during long distances.

In particular, it is expected that the height of the saddle 14 from the ground is between 88 - 100 cm, that the handlebar 18 has grips with a height from the ground of 118 cm - 5 cm, and that the average distance between the seat and the handlebar grips is 55 cm - 10 cm.

In particular, the Applicant has experimentally verified that a combination of wheelbase between 120 and 130 cm and a trail between 13 and 13.5 cm allows for an improvement in the overall stability of the pedal-assisted bicycle in accordance with the embodiment examples described here.

DRIVING SETUP

More specifically, the Applicant deemed it appropriate to optimise the dynamic behaviour of the bicycle by acting on four parameters combined together to obtain a riding response similar to that of large touring motorbikes.

The parameters considered relevant by the Applicant include:

- trail values made stable by the 22 fork with parallelogram geometry;

- the expected wheelbase values, as easily understandable for an expert in the field, are higher than those typical of known pedal-assisted bicycles, which allows for a high righting moment and high stability while riding;

- tire value 15, expected 26? and tire diameter in width of 3.50?, according to one of the standards in use in bicycles, and tire characteristics that, through their moving mass, generate a significant gyroscope effect; and

- the positioning of the heaviest masses, including, in particular, the motor 75 and battery pack 71, in a lower area and in a central position of the bicycle 10.

According to an embodiment considered preferable, the frame comprises, housed in the load-bearing beam 21, a pair of rear shock absorbers 44 and, housed in the front fork 22, for example in an upper area thereof, a front shock absorber 42.

In particular, the rear shock absorbers 44 are connected between the end part of the rear carriage 24 and the rear area of the load-bearing beam 21 and the front shock absorber 42 is connected inside the parallelogram geometry of the front fork.

According to a preferred embodiment, it is envisaged that the components with the greatest masses, such as the battery pack 71 and the battery charger 72, are positioned inside the frame in a central position so as to obtain an optimal weight distribution, with a low central centre of gravity and a weight distribution on the wheels preferably between 45% - 5% on the front wheel and 55% - 5% on the rear wheel.

The Applicant has experimentally verified that, in order to obtain a high level of riding comfort, the overall weight of the bicycle must be between 50 and 65 kg.

The weight range indicated above has been experimentally proven to contribute to ride stability, assuming, for example, users weighing between 80 and 120 kg. In particular, it has also been experimentally verified that the ratio between the weight of the bicycle and the average weight of the user represents an ideal combination for comfort, handling and riding safety.

In order to understand the importance of this balance between bicycle and user, think about the driving behavior between a motorcycle and its driver; it is clear that the mass of which the motorcycle is made will cause the driver to be influenced by it in the driving itself, on the other hand in a pedal-assisted bicycle of a known type the weight of the user is always greater than the weight of the bicycle, which leads to easy but very unstable and dangerous driving at speeds above 25 km/h.

The weight ratio on the pedal-assisted bicycle in accordance with the present examples of embodiment represents an ideal balance for the purposes of stability, safety, comfort and handling of pedalling, as experimentally verified by the Applicant.

ELECTRONIC DEVICES

According to a preferred embodiment, the pedal-assisted bicycle 10 comprises an electronic adjustment device 50 (Fig. 3 and Fig. 4) of the saddle 14, for example a mechatronic automatic adjustment device of the saddle, connected, for example to a jack 51, positioned between the saddle and the load-bearing beam.

The device 50 is configured to allow the user to vary, as explained in detail below, the riding position by automatically and/or voluntarily adjusting, by means of the jack 51, the height position of the saddle 14 with respect to the frame and, therefore, also with respect to the ground.

In accordance with a preferred embodiment, the device 50 (Fig. 3 and Fig. 4) comprises a microprocessor circuit 55, in which a management software 53 is stored, one or more sensors, 52a-52n, configured to detect, for example, inclination or slope, speed and/or other operating parameters of the bicycle, one or more control switches, 54a-54n, configured to adjust the position of the saddle 14 with respect to the frame 12 in accordance with dynamic configurations, predefined or manually desired by the user.

For example, the microprocessor circuit 55 comprises a microprocessor, produced by the ATMEL company Mod. Atmega328P, commercial Hall effect sensors positioned, preferably, near the front wheel, inclination or gyroscopic sensors and a control panel placed on the handlebars and made using "tact" (tactile) type micro-switches.

In summary, the device 50 is configured to move the jack 51 connected to the saddle and therefore control the position of the saddle 14, based on the signals coming from the sensors and/or switches.

The Applicant believes that the device as described meets multiple user needs.

In particular, the need to vary the saddle height automatically and in a programmed manner turns out to be an important function for the safety and optimisation of riding on pedal-assisted bicycles intended for touring activities.

Indeed, considering that these bicycles have a weight similar to that of a small motorbike, but that, despite their increased size and weight, they retain the pedalling technique of a classic bicycle, the Applicant has encountered in users the specific need to extend their legs when pedalling but also to be able to place their feet on the ground when stopping, safely supporting the increased weights of the bicycle, and thus avoiding a possible imbalance that would cause possible falls.

To overcome this problem, for example, the device 50, comprising the appropriately programmed microprocessor circuit 51 and the plurality of sensors 52a-52n, is configured to bring the saddle to a comfortable position for the user when the bicycle is started and stopped.

Thanks to this device 50, it will be possible for the user to have a secure support on the ground with the entire sole of the foot, vice versa, once the bicycle starts moving, the device 50 will be programmed to bring the user into the ideal position for effective pedaling.

According to a possible variant of the preferred embodiment, it is envisaged, for example, that the position of the saddle in relation to the pedals can be programmed according to the height of the user.

For example, it is expected that a user or more users can enter data relating to their respective physical characteristics and/or heights in order to obtain preset saddle positioning levels optimized for the characteristics of the respective users.

In accordance with other possible embodiments, if the inclination or slope sensors, 52a-52n, are present in the device 50, it will be possible for the user to automatically adjust the height of the saddle 14 according to the type of route.

For example, in the case of an uphill route, the device will proceed to slightly increase the height of the saddle with respect to the pedals in order to improve the push on the pedal.

In the case of a downhill route, the device will, for example, lower the height of the saddle from the pedals, thus reducing or eliminating the need to pedal. In the latter case, lowering the saddle height will also lower the bicycle's center of gravity and thus provide greater safety, especially in the case of downhill curves.

SADDLE

According to a possible embodiment, the saddle 14 is configured so as to include padding 56 (Fig. 5) comprising gel inserts 56a, in correspondence with the user's buttocks, and a prostatic channel 56b, in correspondence with the central area, in order to allow maximum comfort without losing effectiveness in the pedalling function during long journeys.

In addition, it is preferably foreseen that the saddle 14 includes an overall support surface increased by at least 20% compared to that of known pedal-assisted bicycles.

TIRES

According to a possible embodiment, it is envisaged that the pedal-assisted bicycle 10 comprises, mounted on the wheels 15, for example on spoked wheels of identical dimensions, tyres 16 (Fig. 1 and Fig. 6) configured in such a way as to maximise the efficiency of the ride without losing the safety characteristic to be expected on these types of bicycles.

In accordance with the preferred embodiment, the tires 16 comprise, for example, a section 60, preferably ovoid in shape, with shoulders 61, preferably reinforced, to allow for minimum support when driving in a straight line.

In particular, in accordance with the preferred embodiment, the tires 16 have an external diameter of 26?, the tire has a section width of 3.50? according to one of the standards in use in bicycles.

The choice to create a tire with features designed for the 10 pedal-assisted bicycle for touring activities, arises from a twofold consideration:

- firstly, by the absence on the market of a specific tyre for a bicycle 10 for touring activities, which, in fact, is positioned halfway between a bicycle and a motorcycle. The Applicant has observed, in fact, that no tyre manufacturer has detected a demand from the market for a tyre with the specifications specified in this description;

- secondly, the Applicant observed that a bicycle 10 for touring activities requires tyres with a larger structure and such as to be assimilated to those of a moped, but with dimensional characteristics of fitment typical of known types of bicycles.

Preferably, the tire 16 comprises a tread 16a made with differentiated compounds, where the tread in a central area 65a comprises a smooth surface made with a harder compound than the compound included in the lateral areas or lateral bands 65c; this solution allows the tires to be provided with greater rigidity, less wear, and less resistance to forward movement.

In accordance with this embodiment, the two lateral bands 65c of tread 16a are made with a compound that is at least 30% softer than that of the central area 65a of the tread, and are also designed to ensure greater grip on the ground.

Furthermore, in accordance with embodiments considered preferable, the 65c side bands include a tread pattern with differentiated shapes to ensure high grip when cornering in slippery conditions.

Even more preferably, between the central tread 65a and the lateral tread bands 65c there is at least one pair of channels 65b configured to improve grip on wet asphalt.

In general, the 16 tyres as described, although falling within the category and standards of bicycle fitting, include structure and compound characteristics specifically designed, in accordance with this example of implementation, for a pedal-assisted bicycle for touring activities.

POWER SUPPLY AND CHARGING SYSTEM

According to a preferred embodiment, it is envisaged that in the pedal-assisted bicycle 10, the battery pack 71 (Fig. 3) has a power of at least 2500 W - 100 W, is connected in a known manner to an electric motor 75 and is configured to have an autonomy such as to make long distances possible, for example at least more than 250 km.

Preferably, the battery charger 72 is housed next to the battery pack 71 in the storage compartment 30 or in a special compartment created in the load-bearing beam 21. Even more preferably, it is envisaged that the battery charger 72 always remains on board the bicycle so that the battery pack 71 can be recharged at any time during the user's journey without having to return to the starting base or transport the battery charger separately.

In particular, the charger 72 also includes a plug 72a, for example a Schuko plug or of the type in use in the country of use, and a cable 72b, for example a spiral and extendable cable, in order to facilitate the charging of the bicycle's battery pack.

In accordance with the preferred embodiment, the pedal-assisted bicycle 10 also comprises a second electronic control device 70, preferably housed inside the battery pack 71, and configured to control and balance the charge/discharge of the battery pack.

The second electronic control device 70 is preferable - it can be monitored remotely, for example via an appropriate APP, and also includes additional functions, such as a battery pack charge level control function, etc.

Even more preferably, the second electronic control device 70 also includes a release component configured to completely disconnect and isolate the battery pack from any other device connected to the battery pack and to minimize the discharge process due to long periods of inactivity.

11 release device, which can be operated, for example, by means of a key control located on the handlebar 18.

AUTOMATIC TRANSMISSION

In accordance with embodiments considered preferable, the pedal-assisted bicycle for touring activities also includes a continuously variable automatic transmission, of a known type, for example the Mod. CVP-SP Automatic transmission from the ENVIOLO Company, configured to allow smooth riding and a constant pedalling cadence.

Preferably, the continuous gear change allows you to keep the pedaling frequency unchanged by automatically and continuously adapting the gear ratio to the road conditions.

SPLIT ELECTRIC CIRCUIT

In accordance with further embodiments considered preferable, the pedal-assisted bicycle 10 for tourism activities also comprises a split electrical system, which has the purpose of separately serving the engine and any other device or component. In this way it is expected that it is always possible for the user to use the bicycle even in manual operation, that is, without the aid of the engine 75 but without giving up those services such as lights, automatic adjustment of the saddle and automatic gear change, powered in any case by the battery pack 71.

FOLDABLE HANDLEBAR

In accordance with a possible variant of the preferred embodiment, the handlebar 18 is configured so as to be foldable and make the bicycle 10 more functional in terms of transport and storage.

In particular, the handlebar 18, in order to be foldable, comprises two arms, 81a and 81b (Fig. 2 and Fig. 7), comprising respective ends for attachment, 82a and 82b, to the front fork 22, for example to a threaded steering pin 22a of the front fork.

Even more specifically, each coupling end, 82a and 82b, of the arms, 81 a and 81 b, includes respective fixing rings, 83a and 83b, for example metal rings with respective thousand lines impressed on them, which can be superimposed on each other.

In use, it is expected that the two fixing rings are superimposed and aligned with respect to the steering pin 22a of the fork and tightened together to prevent movements by means of a fixing knob 85 screwed onto the threaded steering pin so as to lock the two fixing rings 83a and 83b together either in the open position or in the closed position of the handlebar 18.

Thanks to this configuration, it is possible to rotate the arms by at least 45° from the open to the closed position and to bring the two arms together in order to reduce the overall size of the bicycle by more than a third in its width.

ADVANTAGES

The pedal-assisted bicycle as described represents a systemic combination of devices and components designed to make this type of bicycle more functional for tourism activities.

In particular, the pedal-assisted bicycle according to the various embodiments includes at least some of the following characteristics with regards to comfort:

- a frame geometry configured to obtain a wheelbase of between 120 and 130 cm; - a seating position, given by the frame geometry, which allows for a distance between the seat and the handlebar grip such as to permit an upright posture for less muscular tension and better control of the bicycle; for example, it is expected that the height of the saddle 14 from the ground is between 88 - 100 cm, that the handlebar 18 has grips with a height from the ground of 118 cm ? 5 cm, and that the average distance between the seat and the handlebar grips is 55 cm ? 10 cm;

- an overall weight of the bicycle between 50 and 65 kg which allows for a balanced mass in relation to the weight of the user, allowing for a higher level of stability and riding comfort;

- a saddle with an anatomical shape for a wide and complete support in which the padding is made with a differentiated polyurethane foam in relation to the support points of the buttocks and is equipped with a prostate canal;

- an automated mechatronic saddle adjustment device, which allows the user's ideal positions to be memorized and dynamic adjustment while riding in relation to riding needs; for example, it is envisaged that when slowing down due to a stop, the adjustment device will bring the saddle to a lower position to allow easy support with the feet on the ground, and that, when restarting, after the first few pedal strokes, the saddle will position itself in the ideal condition set by the user, allowing for more comfortable and safe riding;

preferably, one front shock absorber and a pair of rear shock absorbers;

- preferably an automatic continuous gear change that allows for smooth riding and a constant pedaling cadence.

Furthermore, the pedal-assisted bicycle according to preferred embodiments comprises at least some of the following features with respect to safety:

- specific tyres with a structural consistency foreseen in the standards for mopeds and a tread designed to have maximum safety, reliability, smoothness and versatility in touring activities;

- a specific frame designed to provide great rigidity and lightness, built with a carbon fiber monocoque that creates a load-bearing body inside which, in special compartments, various devices are housed, such as the control electronics, the battery pack, the charging device and any objects necessary for long-distance journeys;

- preferably, to complete the safety features, the pedal-assisted bicycle is also provided with disc brakes on all wheels and visual and audible signalling devices of a known type.

The pedal-assisted bicycle according to preferred embodiments comprises at least some of the following features with regard to increasing the levels of travel:

- a rechargeable battery pack, for example lithium-ion with at least 2500 W;

- a battery charger that is always available as it is housed in a compartment in the frame configured to allow charging even along the route in the event of long journeys during tourism activities;

- a split electrical system, which has the purpose of serving the engine and the other devices separately, so that it is always possible to use the bicycle even in manual mode, that is without the help of the engine but without giving up those services such as lights, automatic saddle adjustment and automatic gear change, which are still powered by the battery pack.

Finally, the pedal-assisted bicycle, according to preferred embodiments, also includes some of the following characteristics with regard to functional features for tourism activities:

- provision of specific components related to the mode of use such as a foldable front luggage rack placed in the front fork and attachment systems for travel bags to be fixed, for example, via holes placed in the central crosspiece;

- provision of specific components configured to fold the handlebars and facilitate transport operations in cars on trolleys or in special travel containers. These components allow the handlebar arms to be unlocked by means of a lock, allowing them to rotate.

Of course, obvious modifications and/or variations are possible to the above description, in dimensions, shapes, materials, components, circuit elements and connections, as well as in the details of the illustrated construction and method of operation without departing from the invention as specified in the following claims.

Claims (8)

1. A pedal-assisted bicycle comprising - a frame (12), - a saddle (14), - at least two wheels (15) connected to the frame and comprising respective tyres (16), - a handlebar (18) configured to drive the pedal-assisted bicycle (10), - a pair of pedals (19) operable by a user of the bicycle (10), - an electric motor (75) powered by a rechargeable battery pack (71), characterised by what - the frame (12) includes - a load-bearing beam (21) made of carbon fibre and comprising two half-shells designed to create a storage compartment (30) configured to contain at least the battery pack (71), - a front fork (22) made of aluminium and connected to the load-bearing beam by means of a front shock absorber (42), - a rear carriage (24) made of aluminium, comprising two side-by-side and mirror-image arms connected to the load-bearing beam by means of respective rear shock absorbers (44), and from what? - the saddle (14) is removably connected to the frame (12) by means of a jack (51) controlled by an electronic device (50) configured to adjust the position of the saddle in relation to the frame according to the operating parameters of the bicycle. 2. The bicycle according to claim 1, wherein the electronic device (50) comprises - a microprocessor circuit (55), and - at least one or more sensors (52a-52n) configured to detect the operating parameters of the bicycle and transmit them to the microprocessor to adjust the position of the saddle in relation to the frame based on the parameters detected by the sensors (52a-52n). 3. The bicycle according to claim 2, wherein the electronic adjustment device (50) further comprises - at least one or more control switches (54a-54n) mounted on the handlebar (18) and configured to adjust the position of the saddle (14) with respect to the frame (12) according to predefined configurations or manually desired by the user. 4. The bicycle according to any of claims 1 to 3, wherein the battery pack (71) is sized so as to guarantee an autonomy such as to make possible flat journeys of at least more than 250 km. 5. The bicycle according to any of claims 1 to 4, wherein the storage compartment (30) is provided to include, connected to the battery pack (71), a battery charger component (72) including a connection cable (72b) connectable to an external socket. 6. The bicycle according to any of claims 1 to 5, wherein the tires (16) comprise a section (60) comprising - in a central area (65a) a first type of tread (16a), and - in the lateral areas (65c) a second type of tread, called second type of tread being made with a compound that is at least 30% softer than that of the first type of tread. 7. The bicycle according to any of claims 1 to 6, further comprising - a second electronic device (70) configured to control and balance charge/discharge of the battery pack. 8. The bicycle of claim 7, wherein the second electronic device (70) is remotely monitorable and is configured to completely disconnect and isolate the battery pack from any other device connected to the battery pack.