JT Sprockets

Online Catalogue

Kawasaki Z900 RS (ZR900 CJF,CKF,CJFA,CJFB,CKF,CKFB),CLF,CLFA,CLFB

2018 to 2020

Front Sprocket

Steel Front Sprocket

Part Number: JTF1537

Teeth: 15

Available Sizes: 14, 15, 16, 17, 18, 19

OE Type Rubber Cushioned Front Sprocket

Part Number: JTF1537RB

Teeth: 15

Available Sizes: 15, 16, 17

Rear Sprocket

Steel Rear Sprocket

Part Number: JTR1489

Teeth: 42

Available Sizes: 39, 40, 41, 42, 43, 44

Drive Chain

Pitch: 525

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

TeethFront Sprocket
141516171819
Rear Sprocket392.79
-0.5%
2.60
-7.1%
2.44
-12.9%
2.29
-18.1%
2.17
-22.6%
2.05
-26.7%
402.86
+2.0%
2.67
-4.8%
2.50
-10.7%
2.35
-16.0%
2.22
-20.6%
2.11
-24.8%
412.93
+4.6%
2.73
-2.4%
2.56
-8.5%
2.41
-13.9%
2.28
-18.7%
2.16
-22.9%
423.00
+7.1%
2.80
standard
2.62
-6.2%
2.47
-11.8%
2.33
-16.7%
2.21
-21.1%
433.07
+9.7%
2.87
+2.4%
2.69
-4.0%
2.53
-9.7%
2.39
-14.7%
2.26
-19.2%
443.14
+12.2%
2.93
+4.8%
2.75
-1.8%
2.59
-7.6%
2.44
-12.7%
2.32
-17.3%

Lower gear ratios allow for higher top speeds.

Higher gear ratios increase torque for better acceleration.

Full Gear Ratio Chart (pdf)