JT Sprockets

Online Catalogue

Suzuki TSR125(TS125R-L/R) <<< 520 Chain Conversion (SF15A)

1990 to 1994

Front Sprocket

Steel Front Sprocket

Part Number: JTF422

Teeth: 12

Available Sizes: 12, 13, 14, 15

Rear Sprocket

Steel Rear Sprocket

Part Number: JTR808

Teeth: 39

Available Sizes: 39, 41, 43, 44, 46, 47, 49, 52, 53

Lightweight Self-Cleaning Rear Sprocket

Part Number: JTR808SC

Teeth: 39 Check Availability

Available Sizes: 47, 48, 49, 50, 51

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
12
Rear Sprocket393.25
standard
473.92
+20.5%
484.00
+23.1%
494.08
+25.6%
504.17
+28.2%
514.25
+30.8%

Lower gear ratios allow for higher top speeds.

Higher gear ratios increase torque for better acceleration.

Full Gear Ratio Chart (pdf)