JT Sprockets

Online Catalogue

Hyosung GT125 Naked

2003 to 2015

Front Sprocket

Steel Front Sprocket

Part Number: JTF410

Teeth: 14

Available Sizes: 13, 14, 15, 16

Rear Sprocket

Steel Rear Sprocket

Part Number: JTR1067

Teeth: 52

Available Sizes: 52

Drive Chain

Pitch: 428

Length: 138

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
13141516
Rear Sprocket524.00
+7.7%
3.71
standard
3.47
-6.7%
3.25
-12.5%

Lower gear ratios allow for higher top speeds.

Higher gear ratios increase torque for better acceleration.

Full Gear Ratio Chart (pdf)