JP2002087360A - Motorcycle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To firmly support a link of a rear wheel suspension device, a main stand and an exhaust pipe without increasing a frame weight, when they are supported. SOLUTION: In this motorcycle wherein a pair of left and right frame members is connected by a cross member 17, wherein a rear arm 24 is pivoted to the frame members, and wherein the rear arm 24 is supported by the rear wheel suspension device 21, the cross member 17 is arranged in a lower side compared with the a pivotal position of the rear arm 24, and the main stand 19, the link 22 of the rear wheel suspension device 21 and the exhaust pipe 20 are supported to the cross member 17.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motorcycle having a rear arm supported by a rear wheel suspension.

[0002]

2. Description of the Related Art In a motorcycle, a link of a rear wheel suspension, a main stand, an exhaust pipe, and the like are supported on a frame at appropriate positions.

[0003]

In such a supporting structure, it is necessary to secure the frame rigidity at each location in order to obtain the necessary supporting strength at each location, which causes an increase in the weight of the frame. Was.

The present invention has been made in view of the above circumstances, and provides a motorcycle which can firmly support each of a link, a main stand, and an exhaust pipe of a rear wheel suspension without increasing a frame weight. It is intended to be.

[0005]

Means for Solving the Problems In order to solve the above problems and achieve the object, the present invention has the following constitution.

According to a first aspect of the present invention, there is provided a motorcycle in which a pair of left and right frame members are connected by a cross member, a rear arm is pivotally supported by the frame members, and the rear arm is supported by a rear wheel suspension device. The cross member is disposed below the pivot of the rear arm,
A motorcycle characterized by supporting a main stand, a link of a rear wheel suspension device, and an exhaust pipe on the cross member. ].

According to the first aspect of the present invention, the main stand is provided with a cross member which is set to have high rigidity to support a link of a rear wheel suspension device on which a large load (input) from the rear wheel acts. Since the link and the exhaust pipe of the rear wheel suspension device are supported in a concentrated manner, it is not necessary to reinforce other parts of the frame for these supports, and the entire frame can be reduced in weight.

According to a second aspect of the present invention, a main stand pivot is formed below the cross member in a side view of the bracket welded to the cross member, and the exhaust is provided in front of the main stand pivot. The motorcycle according to claim 1, wherein a pipe support portion is formed, and a link pivot portion of the rear wheel suspension device is formed behind the cross member and above the main stand pivot portion. ].

According to the second aspect of the present invention, the main stand can be pivotally supported below the cross member. Even when the main stand is flipped up during traveling, the main stand can be pivoted behind the cross member and at the main stand pivot. It does not interfere with the link of the rear wheel suspension arranged above and the exhaust pipe supported in front of the main stand pivot.

According to a third aspect of the present invention, the link of the rear wheel suspension device is pivotally supported on a frame side, and an end opposite to the pivotal support portion is connected to a shock absorber to form an L-shaped side view. And a pair of right and left arms for connecting the intermediate point of the relay arm and the rear arm. The connecting portion of the relay arm with the shock absorber of the relay arm in a vehicle equipped and in a non-riding state is the pair of left and right arms. The motorcycle according to claim 2, wherein the motorcycle is located above a connection portion with the arm. ].

According to the third aspect of the present invention, the link of the rear wheel suspension device is constituted by an L-shaped relay arm and a pair of left and right arms in a side view, so that the relay arm can be mounted on the vehicle and in a non-riding state. The connection part with the shock absorber is located above the connection part with the pair of left and right arms, so that even if the main stand is flipped up, interference with the relay arm pivotally supported on the frame side is more reliably prevented. . In addition, the angle at which the main stand is raised can be increased, and a large bank angle to the left and right of the vehicle body can be secured.

According to a fourth aspect of the present invention, an extension of an imaginary line connecting a connecting portion of the relay arm to the shock absorber and a connecting portion of the pair of left and right arms is located above the pivot of the main stand. The motorcycle according to claim 3, wherein the motorcycle passes through. ].

According to the fourth aspect of the present invention, the extended portion of the imaginary line connecting the connecting portion of the rear arm to the shock absorber and the connecting portion of the left and right arms passes above the pivot portion of the main stand. By doing so, even if the main stand is flipped up, interference with the relay arm pivotally supported on the frame side is more reliably prevented. In addition, the angle at which the main stand is raised can be increased, and a large bank angle to the left and right of the vehicle body can be secured.

According to a fifth aspect of the present invention, there is provided an exhaust pipe comprising:
The exhaust control device that controls an exhaust passage area of the exhaust pipe or controls a connection state of the exhaust passage is provided in front of the exhaust pipe support portion. The motorcycle according to claim 1. ].

According to the fifth aspect of the present invention, the exhaust control device disposed in the exhaust pipe is provided in front of the exhaust pipe support.
This exhaust control device does not hinder the arrangement of the links of the main stand and the rear wheel suspension, since it is located away from the links of the main stand and the rear wheel suspension.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A motorcycle according to an embodiment of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a side view of a motorcycle, FIG. 2 is a side view showing a state in which an engine is supported on a body frame, FIG. 3 is a side view of the body frame, FIG.
5 is a rear view of the vehicle body frame, FIG. 6 is a left side view of the rear side of the motorcycle, FIG. 7 is a side view showing the rear wheel suspension device, and FIG. 8 is a sectional view taken along line IV-IV of FIG. 9 is a right side view of the rear side of the motorcycle, FIG. 10 is a side view of the rear arm, FIG. 11 is a plan view of the rear arm, FIG. 12 is a sectional view taken along line XII-XII of FIG. 11, and FIG. 14 is a sectional view taken along line XIV-XIV in FIG. 13, FIG. 15 is a rear view of the bracket, FIG. 16 is a left view of the bracket, FIG. 17 is a right view of the bracket, and FIG. 19 is a side view of the right down tube viewed from the left side, FIG. 20 is a front view of the right down tube, FIG. 21 is a rear plan view of the right down tube, and FIG. FIG. 23 is a sectional view taken along the line XXIII-XXIII of FIG. 22, and FIG. 24 is a line XXIV-XXIV of FIG. 25 is a front view of the front connection portion of the right down tube, FIG. 26 is a bottom view of the rear connection portion of the right down tube, FIG. 27 is a cross-sectional view taken along line XXVII-XXVII of FIG. FIG. 28 is a sectional view taken along line XXVIII-XXVIII in FIG. 2, FIG. 29 is a bottom view of the seat, and FIG. 30 is a sectional view of the seat.

A front fork 4 on which a front wheel 3 is suspended is rotatably supported on a head pipe 2 constituting a body frame 1 of the motorcycle, and can be steered by a bar handle 5. A pair of left and right main frames 6a, 6b extending rearward are welded to the rear side of the head pipe 2, and rear arm brackets 7a, 7b are welded to the rear portions of the main frames 6a, 6b, respectively.

Seat frames 8a and 8b are welded to the rear ends of the pair of left and right main frames 6a and 6b, respectively.
The rear sides of the seat frames 8a and 8b are welded to the upper portions of the rear arm brackets 7a and 7b and to the rear half portions of the back stays 9a and 9b extending rearward.

A seat 90 is placed on the seat frames 8a, 8b and the backsleys 9a, 9b. A fuel tank 91 is provided in front of the seat 90 with the main frame 6.
a, 6b.

As shown in FIGS. 29 and 30, the seat 90 is provided with a pair of left and right U-shaped lock mounting recesses 90b in a seat bottom plate 90a. The U-shaped lock mounting concave portion 90b is formed to be wide, the small U-shaped lock 95 is positioned on the inner side wall 90b1 of the U-shaped lock mounting concave portion 90b, and the large and small U-shaped lock 96 is formed in the U-shaped lock mounting concave portion 90b. The rubber band 9 is positioned at the outer side wall 90b2.
7 can be hooked on a rubber band hook 90c to hold U-shaped locks of different sizes.

A pair of left and right down tubes 10a, 10b are connected to the rear side of the head pipe 2, and the pair of left and right down tubes 10a, 10b extend obliquely downward and rearward.
It is further bent downward, extends rearward, and is connected to the rear arm brackets 7a, 7b.

The left down tube 10a is welded to the head pipe 2 on the front side and welded to the rear arm bracket 7a on the rear side, and is integrated with the vehicle body frame 1.
A gusset 11 is welded between the left down tube 10a and the upper part of the left main frame 6a.
A gusset (not shown) is similarly welded between the mounting member 12 welded to the head pipe 2 and the upper part of the right main frame 6a.

A gusset 13 is welded to the head pipe 2, the mounting member 12, and the lower side of the right main frame 6a. The right down tube 10b has front and rear attachment portions 10b1 and 10b2 welded thereto.
Each of the mounting portions 10b1 and 10b2 has a mounting hole 10b.
11 and 10b21 are formed, and the mounting surface 10
b12 and 10b22 are formed.

Attachment section 10 of right down tube 10b
As for b1, as shown in FIG. 25, the mounting surface 10b12 is applied to the mounting portion 12a of the mounting member 12 of the head pipe 2, and the mounting screw 14 is inserted into the mounting hole 10b11 to be tightened and fixed to the mounting portion 12a.

Attachment part 10 of right down tube 10b
As for b2, as shown in FIG. 26, the mounting surface 10b22 is applied to the mounting portion 7b1 of the right rear arm bracket 7b, and the mounting screw 15 is inserted into the mounting hole 10b21 to be tightened and fixed to the mounting portion 7b1. The mounting portion 10b2 of the right down tube 10b is covered with an appearance plate 93 and the mounting portion 10b.
b2 is not visible from the outside.

A pair of left and right rear arm brackets 7a, 7
b is reinforced by welding the casting bracket 16,
The footrest 30 is supported on the casting bracket 16.

The rear arm brackets 7a, 7b
The cross members 29 and 17 are connected to each other, and a pivot shaft 23 serving as a pivot is provided between the cross members 29 and 17. A front side of a rear arm 24 is pivotally supported on the pivot shaft 23, and a rear wheel 25 is supported on a rear side of the rear arm 24. The power of an engine 26 is transmitted to the rear wheel 25 via a chain 27.

As shown in FIGS. 10 to 12, the front ends of the pair of left and right frames 240 are welded to the support pipe 241 and the intermediate part is connected by a connection pipe 242, and the rear axle mounting part is provided at the rear end. 243 are welded. The connecting pipe 242 includes a link mounting portion 24a.
Are formed. Also, on the right frame 240,
A tension member connecting portion 24b is formed.

As shown in FIG. 12, the pair of left and right frames 240 is formed in a rectangular shape having a long cross section in the vertical direction, the vertically extending portion 240a is made thinner, and the laterally extending portion 240b is made thicker. Part 2 extending in the vertical direction
40a is connected by a rib 240c, and has a small size and a structure with improved rigidity.

A support pipe 241 of the rear arm 24 is pivotally supported by a pivot shaft 23 and a rear axle mounting portion 243
The axle 25a of the rear wheel 25 is journalled. Also, as shown in FIG. 9, the bracket 251 of the rear brake device 250
Is provided so as to be pivotally supported on the axle 25a.
1 is supported by a tension member connecting portion 24b via a tension member 258.

The caliper 252 communicates with the master cylinder 254 via a brake hose 253. Master cylinder 254 and brake pedal 255 are mounted on casting bracket 16. The reserve tank 256 communicating with the master cylinder 254 is connected to the right backstay 9.
b. This backstay 9b on the right
, A bracket 260 is attached, and the muffler 20 b of the exhaust pipe 20 is attached to the bracket 260.

The rear arm 24 is supported by a link 22 of the rear wheel suspension device 21. The link 22 is composed of an L-shaped relay arm 22a in side view and a pair of left and right arms 22b. The relay arm 22a is pivotally supported on the frame side via a support shaft 80, and an end 22a2 opposite to the pivotal support portion 22a1 is rotatable via a support shaft 81 to a lower end portion 28a of the shock absorber 28. Be linked.
The upper end 28 b of the shock absorber 28 is connected to a bracket 31 welded to the cross member 29.

The pair of left and right arms 22b connects the middle point 22a3 of the relay arm 22a and the bracket 24a of the rear arm 24. The intermediate point 22a3 is rotatably connected via a support shaft 82, and is rotatably connected to the bracket 24a via a support shaft 83. In a vehicle equipped state and in a non-riding state, a connecting portion K1 between the relay arm 22a and the lower end portion 28a of the shock absorber 28 is located above a connecting portion (intermediate point) K2 between the pair of left and right arms 22b.

The cross member 17 includes a bracket 18
The main stand support portion 18a, the exhaust pipe support portion 18b, and the link support portion 1
8c is provided. The main stand 19 is pivotally supported by the main stand support portion 18a.
A mounting portion 20d of the exhaust pipe 20 is supported by b via mounting bolts 20e, and a link 22 of the rear wheel suspension device 21 is pivotally supported by the link supporting portion 18c.

As described above, the main stand 19, the link 22 of the rear wheel suspension device 21, and the exhaust pipe 20 are a pair of right and left rear arm brackets 7 a and 7 b below a pivot shaft 23 which is a pivot of the rear arm 24. A bracket 18 is attached to the cross member 17 connecting the frame members.
Support through.

The bracket 18 welded to the cross member 17 allows the main stand 19 and the rear wheel suspension 2
In supporting the three of the one link 22 and the exhaust pipe 20,
Main stand 1 below cross member 17 in side view
9 to support the exhaust pipe 20 in front of the stand support portion 18a, and to form a link support portion 18c of the rear wheel suspension device 21 behind the cross member 17 and above the stand support portion 18a. I have.

The exhaust pipe 20 is arranged so as to extend from the front side of the engine 26 to the right side of the rear wheel 25 passing below.
The exhaust pipe 20 is provided with an exhaust control device 35 that controls the area of the exhaust passage or controls the connection state of the exhaust passage in front of the exhaust pipe support portion 18b. Since the exhaust control device 35 is disposed in front of the exhaust pipe support portion 18b and separated from the main stand 19 and the link 22 of the rear wheel suspension device 21, the exhaust control device 35 is linked to the main stand 19 and the rear wheel suspension device 21. 22 does not hinder the arrangement.

As described above, the main stand 19 and the rear wheel suspension are mounted on the cross member 17 which is set to have high rigidity to support the link 22 of the rear wheel suspension device 21 on which a large load (input) from the rear wheel 25 acts. Since the link 22 and the exhaust pipe 20 of the device 21 are supported in a concentrated manner, it is not necessary to reinforce other parts of the body frame for supporting them, and the weight of the whole body frame can be reduced.

The cross member 17 is connected to the rear arm 2
The main stand 19, the link 22 of the rear wheel suspension device 21, and the exhaust pipe 20 are concentratedly supported on the cross member 17 by utilizing the space at the lower position of the pivot shaft 23, which is the pivot portion of No. 4. However, they can be arranged in a limited space without interference.

A main stand pivot 18a is formed below the cross member 17 in a side view on the bracket 18 welded to the cross member 17, and an exhaust pipe support 18b is formed in front of the main stand pivot 18a. And
At the rear of the cross member 17 and above the main stand pivot 18a, the link pivot 18c of the rear wheel suspension 21 is provided.
Is formed, the main stand 19 can be pivotally supported below the cross member 17.
Even if it is flipped up, it interferes with the link 22 of the rear wheel suspension device 21 disposed behind the cross member 17 and above the main stand pivot 18a and the exhaust pipe 20 supported in front of the main stand pivot 18a. Nothing.

The link 22 of the rear wheel suspension device 21 is connected to an L-shaped relay arm 22a in a side view and a pair of left and right arms 2
2b, the connecting portion K1 of the relay arm 22a to the shock absorber 28 is located above the connecting portion K2 to the pair of left and right arms 22b when the vehicle is in a non-riding state, so that the main stand 19 is rebounded. Even if it is raised, it does not interfere with the relay arm 22a on the frame side more reliably.

Further, the angle at which the main stand 19 is flipped up can be increased, and a large bank angle to the left and right of the vehicle body can be ensured.

A connecting portion K1 of the relay arm 22a to the shock absorber 28, and a pair of left and right arms 22b
The extension of the imaginary line L1 connecting the connecting portion (intermediate point) K2 with the relay arm 22a passes above the main stand supporting portion 18a, so that even if the main stand 19 is flipped up, the relay arm 22a on the frame side is more reliably connected. There is no interference.

The engine 26 is a four-stroke engine. The rear side of the engine 26 is supported by rear arm brackets 7a and 7b, and the front side is a down tube 10a.
10 b is mounted via a link mechanism 40.

Brackets 36 and 37 are formed on the rear arm brackets 7a and 7b, and the mounting bosses 26a and 26b of the engine 26 are attached to the brackets 36 and 37.
Are supported via support bolts 38 and 39.

As shown in FIGS. 22 to 24, the link mechanism 40 connects the left and right brackets 41 and 42 to a connecting member 43.
And the brackets 41 and 42 are connected to the down tube 10.
The brackets 41 and 42 support the front side of the engine 26 by the pivot fulcrum P3 and the pivot fulcrum P2.

The pivot fulcrum P 1 is connected to the boss 44 by a bush 45.
, A cover 48 is provided via seal members 47 on both sides of the support tube 46, and the support tube 46 is welded to the brackets 41 and 42.

The swing fulcrum P2 is connected to the collar 49 by the damper 5.
A support tube 51 is provided through the support tube 51, and the support tube 51 is welded to the brackets 41 and 42. As shown in FIG. 22, the outer periphery 50a of the damper 50 is fixed to the support tube 51, and a part of the inner periphery is fixed to the collar 49 in the X direction, which is a line connecting the pivot point P1 and the pivot point P2. The Y direction, which is the direction in which the link 40 swings perpendicular to the X direction, is
b is formed, and the spring constant of the damper 50 becomes X from the Y direction.
The direction is set large.

The pivot fulcrum P3 is connected to the boss 52 by a bush 53.
, A cover 56 is provided on both sides of the support tube 54 via seal members 55, and the support tube 54 is welded to the brackets 41 and 42.

The pivot fulcrum P1 and the swing fulcrum P2 are mounted on mounting bosses 60, 61 of the down tubes 10a, 10b by supporting bolts 62, 63 inserted through the boss 44 and the collar 49. The rotation fulcrum P3 is connected to the engine 26.
Is supported via a support bolt 64 inserted through the boss 52.

As described above, in the link mechanism 40, the right and left brackets 41 and 42 are firmly connected by the connecting member 43, and the brackets 41 and 42 are connected to the down tubes 10a and 1a.
0b, supported by a pivot point P1 and a pivot point P2,
The front side of the engine 26 is supported by the rotation fulcrum P3, and the vibrations of the engine 26 cause the brackets 41 and 42 to swing about the rotation fulcrum P1 as a fulcrum. At this time, the vibration is reduced by the damper 50 of the swing fulcrum P2. At the same time, it serves as a stopper for restricting swinging beyond a predetermined value.

In this embodiment, the right down tube 10b of the left and right pair is detachable. With the right down tube 10b removed, the engine 26 is assembled and the rear arm bracket 7 is mounted on the rear side.
a, 7b, and then the front mounting boss 26c of the engine 26 is mounted via a link mechanism 40 to the left down tube 10a integral with the vehicle body frame 1.

Thereafter, the right down tube 10b is attached to the rear arm bracket 7b and the mounting member 1 for the head pipe 2.
2 to the right down tube 10b,
The mounting boss 26c on the front side of the engine 26 is connected to the link mechanism 4
Support through 0. As shown in FIG. 24, the mounting of the front mounting boss portion 26c of the engine 26 and the link mechanism 40 is performed by visually aligning the link from the left side of the vehicle body and inserting and tightening the support bolt 64 from the right side of the vehicle body. It is done. In this manner, the alignment of the link to the mounting boss portion 26c of the engine 26 by visual observation is easy by performing the mounting boss portions 26c on the left and right from one direction of the vehicle body.

Further, the vehicle body frame 1 is expanded and the engine 2
The engine 26 can be quickly and easily assembled to the body frame 1 without preventing the 6 from overlapping, and without increasing the size of the body frame 1, and the vibration is effectively reduced via the link mechanism 40. be able to.

Also, the rear side of the engine 26 should be at least two
At this point, the mounting bosses 26a, 26b of the engine 26 are supported via support bolts 38, 39, and can be temporarily supported only by the rear side support without the support to the down tubes 10a, 10b. , Down tube 10a, 1
0b is easy to assemble.

[0057]

As described above, according to the first aspect of the present invention, the cross member set to have high rigidity to support the link of the rear wheel suspension device on which a large load (input) from the rear wheel acts. , The main stand, the link of the rear wheel suspension device, and the exhaust pipe are concentrated and supported, so it is not necessary to reinforce other parts of the frame for these supports, and the entire frame can be reduced in weight. .

According to the second aspect of the present invention, the main stand can be pivotally supported below the cross member. Even when the main stand is flipped up during traveling, the main stand is disposed behind the cross member and above the main stand pivot. And the exhaust pipe supported at the front of the main stand pivot.

According to the third aspect of the present invention, the link of the rear wheel suspension device is constituted by an L-shaped relay arm and a pair of left and right arms in a side view, and the shock absorber of the relay arm is mounted on the vehicle and in a non-riding state. Is positioned above the connection with the pair of left and right arms, so that even if the main stand is flipped up, interference with the relay arm pivotally supported on the frame side is more reliably prevented. In addition, the angle at which the main stand is raised can be increased, and a large bank angle to the left and right of the vehicle body can be secured.

According to the fourth aspect of the present invention, the extension of the imaginary line connecting the connecting portion of the rear arm with the shock absorber and the connecting portion of the pair of left and right arms passes above the pivot portion of the main stand. Even if the main stand is flipped up, interference with the relay arm pivotally supported on the frame side is more reliably prevented. In addition, the angle at which the main stand is raised can be increased, and a large bank angle to the left and right of the vehicle body can be secured.

According to the fifth aspect of the present invention, since the exhaust control device disposed on the exhaust pipe is disposed in front of the exhaust pipe supporting portion and separated from the links of the main stand and the rear wheel suspension device, this exhaust control is performed. The device does not hinder the arrangement of the links of the main stand and the rear wheel suspension.

[Brief description of the drawings]

FIG. 1 is a side view of a motorcycle.

FIG. 2 is a side view showing a state in which an engine is supported on a vehicle body frame.

FIG. 3 is a side view of the vehicle body frame.

FIG. 4 is a plan view of the vehicle body frame.

FIG. 5 is a rear view of the vehicle body frame.

FIG. 6 is a left side view of the rear side of the motorcycle.

FIG. 7 is a side view showing the rear wheel suspension device.

8 is a sectional view taken along the line IV-IV in FIG.

FIG. 9 is a right side view of the rear side of the motorcycle.

FIG. 10 is a side view of a rear arm.

FIG. 11 is a plan view of a rear arm.

FIG. 12 is a sectional view taken along the line XII-XII of FIG. 11;

FIG. 13 is a side view of a mounting portion of the exhaust pipe.

14 is a sectional view taken along the line XIV-XIV in FIG.

FIG. 15 is a rear view of the bracket.

FIG. 16 is a left side view of the bracket.

FIG. 17 is a right side view of the bracket.

FIG. 18 is a bottom view of the front side of the vehicle body frame.

FIG. 19 is a side view of the right down tube viewed from the left side.

FIG. 20 is a front view of the right down tube.

FIG. 21 is a rear plan view of the right down tube.

FIG. 22 is a side view of the link.

FIG. 23 is a sectional view taken along the line XXIII-XXIII of FIG. 22;

FIG. 24 is a sectional view taken along the line XXIV-XXIV of FIG. 2;

FIG. 25 is a front view of a front connection portion of the right down tube.

FIG. 26 is a bottom view of the rear connection portion of the right down tube.

FIG. 27 is a sectional view taken along the line XXVII-XXVII of FIG. 2;

FIG. 28 is a sectional view taken along the line XXVIII-XXVIII in FIG. 2;

FIG. 29 is a bottom view of the seat.

FIG. 30 is a sectional view of a sheet.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body frame 2 Head pipe 6a, 6b Main frame 7a, 7b Rear arm bracket 10a, 10b Down tube 17 Cross member 19 Main stand 20 Exhaust pipe 21 Rear wheel suspension device 22 Link 24 Rear arm 26 Engine

Claims (5)

[Claims] 1. A motorcycle in which a pair of left and right frame members are connected by a cross member, a rear arm is pivotally supported by the frame member, and the rear arm is supported by a rear wheel suspension device. A motorcycle which is disposed at a position lower than a support portion and supports a main stand, a link of a rear wheel suspension device, and an exhaust pipe on the cross member. 2. A bracket which is welded to the cross member, a main stand pivot portion is formed below the cross member in a side view, and the exhaust pipe support portion is formed in front of the main stand pivot portion. The motorcycle according to claim 1, wherein a link pivot portion of the rear wheel suspension device is formed behind the cross member and above the main stand pivot portion. 3. A link of the rear wheel suspension device is pivotally supported on a frame side, and an end opposite to the pivotal support portion is connected to a shock absorber. It is constituted by a pair of left and right arms connecting the middle point of the arm and the rear arm, and the connecting portion of the relay arm with the shock absorber is above the connecting portion of the left and right arms with the vehicle equipped and in a non-riding state. The motorcycle according to claim 2, wherein the motorcycle is located. 4. An extension of an imaginary line connecting a connecting portion of the relay arm to a shock absorber and a connecting portion of a pair of left and right arms in a side view passes above a main stand pivoting portion. The motorcycle according to claim 3. 5. The exhaust pipe is provided with an exhaust control device for controlling an exhaust passage area of the exhaust pipe or controlling a connection state of the exhaust passage in front of the exhaust pipe support portion. The motorcycle according to any one of claims 2 to 4.