| 摘要 |
PROBLEM TO BE SOLVED: To provide excellent handlebar operability by making the weight of exhaust system concentrate on a vehicle body front part. SOLUTION: A front exhaust pipe 20 is extended from a cylinder 8 and is connected an expansion chamber 21. Although the expansion chamber 21 is arranged in a space 27 formed between a front wheel 25 and a crank case 9, sufficient exhaust pipe length is secured by winding the front exhaust pipe 20 in the expansion chamber 21 in a loop shape, and a catalytic converter is connected to an exhaust gas downstream end of the front exhaust pipe 20. Consequently, the expansion chamber 21 having relatively large weight is made concentrated on the vehicle body front part below a head pipe 2 to improve handlebar operability. COPYRIGHT: (C)2008,JPO&INPIT
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