JT Sprockets

Online Catalogue

Honda CR80 R2F

1985

Front Sprocket

Part Number: JTF253

Teeth: 14

Available Sizes: 12, 13, 14, 15, 16, 17, 18

Rear Sprocket

Part Number: JTR239

Teeth: 54 Check Availability

Available Sizes: 36, 38, 39, 40, 42, 43, 44, 45, 47, 48, 50

Drive Chain

Pitch: 420

Length: 128

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)

Teeth12131415161718
363.002.772.572.402.252.122.00
383.172.922.712.532.382.242.11
393.253.002.792.602.442.292.17
403.333.082.862.672.502.352.22
423.503.233.002.802.622.472.33
433.583.313.072.872.692.532.39
443.673.383.142.932.752.592.44
453.753.463.213.002.812.652.50
473.923.623.363.132.942.762.61
484.003.693.433.203.002.822.67
504.173.853.573.333.122.942.78