JT Sprockets

Online Catalogue

Honda CRM250 AR (MD32) — Japan

1997 to 1999

Front Sprocket

Steel Front Sprocket

Part Number: JTF1322

Teeth: 14

Available Sizes: 13, 14, 15

Rear Sprocket

Steel Rear Sprocket

Part Number: JTR210

Teeth: 42

Available Sizes: 38, 39, 40, 42, 43, 44, 46, 55

Lightweight Self-Cleaning Rear Sprocket

Part Number: JTR210SC

Teeth: 42 Check Availability

Available Sizes: 45, 47, 48, 49, 50, 51, 52, 53

Racelite Aluminium Rear Race Sprocket

Part Number: JTA210BLK

Teeth: 42

Available Sizes: 40, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54

Drive Chain

Pitch: 520

Length: 110

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
14
Rear Sprocket423.00
standard
453.21
+7.1%
473.36
+11.9%
483.43
+14.3%
493.50
+16.7%
503.57
+19.0%
513.64
+21.4%
523.71
+23.8%
533.79
+26.2%

Lower gear ratios allow for higher top speeds.

Higher gear ratios increase torque for better acceleration.

Full Gear Ratio Chart (pdf)