JT Sprockets

Online Catalogue

Yamaha DT50 SM Supermotard (2C31)

2003 to 2006

Front Sprocket

Part Number: JTF1120

Teeth: 11

Available Sizes: 10, 11, 12, 13, 14, 15

Rear Sprocket

Part Number: JTR1131

Teeth: 48

Available Sizes: 45, 48, 50, 52, 53, 58, 60, 62, 65

Drive Chain

Pitch: 420

Length: 126

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)

Teeth101112131415
454.504.093.753.463.213.00
484.804.364.003.693.433.20
505.004.554.173.853.573.33
525.204.734.334.003.713.47
535.304.824.424.083.793.53
585.805.274.834.464.143.87
606.005.455.004.624.294.00
626.205.645.174.774.434.13
656.505.915.425.004.644.33