JT Sprockets

Online Catalogue

Yamaha YZ65 S

2025

Front Sprocket

Steel Front Sprocket

Part Number: JTF1558

Teeth: 14

Available Sizes: 14

Rear Sprocket

Steel Rear Sprocket

Part Number: JTR1798

Teeth: 47

Available Sizes: 47

Drive Chain

Pitch: 420

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

TeethFront Sprocket
14
Rear Sprocket473.36
standard

Lower gear ratios allow for higher top speeds.

Higher gear ratios increase torque for better acceleration.

Full Gear Ratio Chart (pdf)