Online Catalogue

Kawasaki KDX250 SR F1 — Japan

1991

Front Sprocket

Steel Front Sprocket

Part Number: JTF569

Teeth: 13

Available Sizes: 10, 11, 12, 13, 14, 15, 16, 17, 18

Rear Sprocket

Steel Rear Sprocket

Part Number: JTR460

Teeth: 45

Available Sizes: 39, 42, 43, 44, 45, 46, 47, 48, 50, 52, 53

Lightweight Self-Cleaning Rear Sprocket

Part Number: JTR460SC

Teeth: 45 Check Availability

Available Sizes: 48, 49, 50, 51

Racelite Aluminium Rear Race Sprocket

Part Number: JTA460BLK

Teeth: 45 Check Availability

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

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

Teeth		Front Sprocket
Teeth		13
Rear Sprocket	45	3.46 standard
	48	3.69 +6.7%
	49	3.77 +8.9%
	50	3.85 +11.1%
	51	3.92 +13.3%

Lower gear ratios allow for higher top speeds.

Higher gear ratios increase torque for better acceleration.

Full Gear Ratio Chart (pdf)