JT Sprockets

Online Catalogue

Derbi 50 Senda R Classic

2001

Front Sprocket

Steel Front Sprocket

Part Number: JTF1129

Teeth: 12

Available Sizes: 12, 13, 14, 15

Rear Sprocket

Part Number: TBA

Teeth: 53

Available Sizes:

Drive Chain

Pitch: 420

Length: 130

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
12131415
Rear Sprocket534.42
standard
4.08
-7.7%
3.79
-14.3%
3.53
-20.0%

Lower gear ratios allow for higher top speeds.

Higher gear ratios increase torque for better acceleration.

Full Gear Ratio Chart (pdf)