Online Catalogue

Suzuki RM250 X

1981

Front Sprocket

Steel Front Sprocket

Part Number: JTF431

Teeth: 14

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

Rear Sprocket

Lightweight Self-Cleaning Rear Sprocket

Part Number: JTR808SC

Teeth: 50

Available Sizes: 47, 48, 49, 50, 51

Steel Rear Sprocket

Part Number: JTR808

Teeth: 50 Check Availability

Available Sizes: 39, 41, 43, 44, 46, 47, 49, 52, 53

Racelite Aluminium Rear Race Sprocket

Part Number: JTA808BLK

Teeth: 50

Available Sizes: 43, 46, 47, 48, 49, 50, 51, 52, 53

Drive Chain

Pitch: 520

Length: 114

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

Teeth		Front Sprocket
Teeth		14
Rear Sprocket	39	2.79 -22.0%
	41	2.93 -18.0%
	43	3.07 -14.0%
	44	3.14 -12.0%
	46	3.29 -8.0%
	47	3.36 -6.0%
	49	3.50 -2.0%
	50	3.57 standard
	52	3.71 +4.0%
	53	3.79 +6.0%

Lower gear ratios allow for higher top speeds.

Higher gear ratios increase torque for better acceleration.

Full Gear Ratio Chart (pdf)