Online Catalogue

Yamaha WR250 F-Z ,A,B,D,E (Off Road Version) (5UMV/1HC)

Front Sprocket

Lightweight Self-Cleaning Front Sprocket

Part Number: JTF1590SC

Teeth: 14

Available Sizes: 13, 14

JTF1590SC is a Lightweight Self-Cleaning sprocket

Steel Front Sprocket

Part Number: JTF1590

Teeth: 14

Available Sizes: 12, 13, 14

Rear Sprocket

Steel Rear Sprocket

Part Number: JTR245/2

Teeth: 47

Available Sizes: 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53

Racelite Aluminium Rear Race Sprocket

Part Number: JTA251BLK

Teeth: 47 Check Availability

Available Sizes: 48, 49, 50, 51, 52

Drive Chain

Pitch: 520

Length: 114

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

Lower gear ratios allow for higher top speeds.

Higher gear ratios increase torque for better acceleration.

Full Gear Ratio Chart (pdf)