JT Sprockets

Online Catalogue

Yamaha XT600 E (Lightweight Rear Sprocket) (4PT/4SL)

1999 to 2003

Front Sprocket

Steel Front Sprocket

Part Number: JTF1577

Teeth: 15

Available Sizes: 15

To be fit with original 6mm spacer

Rear Sprocket

Steel Rear Sprocket

Part Number: JTR1857

Teeth: 45

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

Drive Chain

Pitch: 520

Length: 106

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
15
Rear Sprocket362.40
-20.0%
372.47
-17.8%
382.53
-15.6%
392.60
-13.3%
402.67
-11.1%
422.80
-6.7%
453.00
standard
473.13
+4.4%

Lower gear ratios allow for higher top speeds.

Higher gear ratios increase torque for better acceleration.

Full Gear Ratio Chart (pdf)