JT Sprockets

Online Catalogue

KTM 125 RC

2018

Front Sprocket

Part Number: JTF1903

Teeth: 14

Available Sizes: 12, 13, 14, 15

Rear Sprocket

Part Number: JTR890

Teeth: 45

Available Sizes: 42, 45

Drive Chain

Pitch: 520

Length: 118

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

Full Gear Ratio Chart (pdf)

Teeth12131415
423.503.233.002.80
453.753.463.213.00