JT Sprockets

Online Catalogue

Kawasaki KX250 R6F,R7F,R8F

2006 to 2008

Front Sprocket

Lightweight Self-Cleaning Front Sprocket

Part Number: JTF565SC

Teeth: 13

Available Sizes: 12, 13, 14

JTF565SC is a Lightweight front sprocket with self-cleaning grooves

Steel Front Sprocket

Part Number: JTF565

Teeth: 13

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

OE Type Rubber Cushioned Front Sprocket

Part Number: JTF565RB

Teeth: 13 Check Availability

Available Sizes: 14, 15, 16

Rear Sprocket

Lightweight Self-Cleaning Rear Sprocket

Part Number: JTR460SC

Teeth: 51

Available Sizes: 48, 49, 50, 51

Steel Rear Sprocket

Part Number: JTR460

Teeth: 51 Check Availability

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

Racelite Aluminium Rear Race Sprocket

Part Number: JTA460BLK

Teeth: 51

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

Drive Chain

Pitch: 520

Length: 116

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
12131415161718
Rear Sprocket393.25
-17.2%
3.00
-23.5%
2.79
-29.0%
2.60
-33.7%
2.44
-37.9%
2.29
-41.5%
2.17
-44.8%
423.50
-10.8%
3.23
-17.6%
3.00
-23.5%
2.80
-28.6%
2.62
-33.1%
2.47
-37.0%
2.33
-40.5%
433.58
-8.7%
3.31
-15.7%
3.07
-21.7%
2.87
-26.9%
2.69
-31.5%
2.53
-35.5%
2.39
-39.1%
443.67
-6.5%
3.38
-13.7%
3.14
-19.9%
2.93
-25.2%
2.75
-29.9%
2.59
-34.0%
2.44
-37.7%
453.75
-4.4%
3.46
-11.8%
3.21
-18.1%
3.00
-23.5%
2.81
-28.3%
2.65
-32.5%
2.50
-36.3%
463.83
-2.3%
3.54
-9.8%
3.29
-16.2%
3.07
-21.8%
2.88
-26.7%
2.71
-31.0%
2.56
-34.9%
473.92
-0.2%
3.62
-7.8%
3.36
-14.4%
3.13
-20.1%
2.94
-25.1%
2.76
-29.5%
2.61
-33.4%
484.00
+2.0%
3.69
-5.9%
3.43
-12.6%
3.20
-18.4%
3.00
-23.5%
2.82
-28.0%
2.67
-32.0%
504.17
+6.2%
3.85
-2.0%
3.57
-9.0%
3.33
-15.0%
3.12
-20.3%
2.94
-25.0%
2.78
-29.2%
514.25
+8.3%
3.92
standard
3.64
-7.1%
3.40
-13.3%
3.19
-18.8%
3.00
-23.5%
2.83
-27.8%
524.33
+10.5%
4.00
+2.0%
3.71
-5.3%
3.47
-11.6%
3.25
-17.2%
3.06
-22.0%
2.89
-26.4%
534.42
+12.6%
4.08
+3.9%
3.79
-3.5%
3.53
-9.9%
3.31
-15.6%
3.12
-20.5%
2.94
-24.9%

Lower gear ratios allow for higher top speeds.

Higher gear ratios increase torque for better acceleration.

Full Gear Ratio Chart (pdf)