tire type YAMAHA YZ250F 2007 Manuale duso (in Italian)

YAMAHA YZ250F 2007 Manuale duso (in Italian) YZ250F 2007 YAMAHA YAMAHA https://www.carmanualsonline.info/img/51/53956/w960_53956-0.png YAMAHA YZ250F 2007 Manuale duso (in Italian)

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YAMAHA YZ250F 2007  Manuale duso (in Italian) SPEC
2 - 3 Transmission:
Primary reduction system Gear
Primary reduction ratio 57/17 (3.353)
Secondary reduction system Chain drive
Secondary reduction ratio 49/13 (3.769)
Transmission type Constant m