JT Sprockets

Online Catalogue

Aprilia TX311

1986 to 1987

Front Sprocket

Steel Front Sprocket

Part Number: JTF402

Teeth: 13

Available Sizes: 13, 14, 15, 16, 17

OE Type Rubber Cushioned Front Sprocket

Part Number: JTF402RB

Teeth: 13 Check Availability

Available Sizes: 16

Rear Sprocket

Part Number: TBA

Teeth: 38

Available Sizes:

Drive Chain

Pitch: 520

Length: 94

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
1316
Rear Sprocket382.92
standard
2.38
-18.8%

Lower gear ratios allow for higher top speeds.

Higher gear ratios increase torque for better acceleration.

Full Gear Ratio Chart (pdf)