JT Sprockets

Online Catalogue

Yamaha YFM250 RSP2-X,Y Raptor Special Edition 2

2008 to 2009

Front Sprocket

Steel Front Sprocket

Part Number: JTF1593

Teeth: 14

Available Sizes: 14

Rear Sprocket

Steel Rear Sprocket

Part Number: JTR1857

Teeth: 38

Available Sizes: 36, 37, 38, 39, 40, 42, 45, 47

Racelite Aluminium Rear Race Sprocket

Part Number: JTA1857BLK

Teeth: 38

Available Sizes: 36, 37, 38

Drive Chain

Pitch: 520

Length: 92

Please note that the chain shown in this listing is for size reference only. For the correct chain type and grade, please refer to the vehicle's manufacturer manual.

Gear Ratio Chart

TeethFront Sprocket
14
Rear Sprocket382.71
standard

Lower gear ratios allow for higher top speeds.

Higher gear ratios increase torque for better acceleration.

Full Gear Ratio Chart (pdf)