JT Sprockets

Online Catalogue

Suzuki GSX-R250 RCH,RH,CJ,CK — Japan

1987 to 1989

Front Sprocket

Part Number: JTF1439

Teeth: 13

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

Rear Sprocket

Part Number: JTR1825

Teeth: 47

Available Sizes: 37, 38, 40, 41, 42, 43, 45, 46, 47, 48

Drive Chain

Pitch: 520

Length: 108

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)

Teeth1112131415
373.363.082.852.642.47
383.453.172.922.712.53
403.643.333.082.862.67
413.733.423.152.932.73
423.823.503.233.002.80
433.913.583.313.072.87
454.093.753.463.213.00
464.183.833.543.293.07
474.273.923.623.363.13
484.364.003.693.433.20