Online Catalogue

Kymco 125 Jetix <<< 420 Chain Conversion — Greece / SE Asia

Front Sprocket

Steel Front Sprocket

Part Number: JTF249

Teeth: 14

Available Sizes: 13, 14, 15, 16

Rear Sprocket

Steel Rear Sprocket

Part Number: JTR257

Teeth: 39

Available Sizes: 30, 34, 36, 38, 39, 40, 41, 42

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

Lower gear ratios allow for higher top speeds.

Higher gear ratios increase torque for better acceleration.

Full Gear Ratio Chart (pdf)