JT Sprockets

Online Catalogue

Kawasaki KX125 K5

1998

Front Sprocket

Lightweight Self-Cleaning Front Sprocket

Part Number: JTF1445SC

Teeth: 12

Available Sizes: 12, 13

JTF1445SC is a Lightweight Self-Cleaning sprocket

Steel Front Sprocket

Part Number: JTF1445

Teeth: 12 Check Availability

Available Sizes: 11, 14

Rear Sprocket

Lightweight Self-Cleaning Rear Sprocket

Part Number: JTR460SC

Teeth: 48

Available Sizes: 48, 49, 50, 51

Steel Rear Sprocket

Part Number: JTR460

Teeth: 48

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

Racelite Aluminium Rear Race Sprocket

Part Number: JTA460BLK

Teeth: 48

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

Drive Chain

Pitch: 520

Length: 112

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
111214
Rear Sprocket393.55
-11.4%
3.25
-18.8%
2.79
-30.4%
423.82
-4.5%
3.50
-12.5%
3.00
-25.0%
433.91
-2.3%
3.58
-10.4%
3.07
-23.2%
444.00
standard
3.67
-8.3%
3.14
-21.4%
454.09
+2.3%
3.75
-6.2%
3.21
-19.6%
464.18
+4.5%
3.83
-4.2%
3.29
-17.9%
474.27
+6.8%
3.92
-2.1%
3.36
-16.1%
484.36
+9.1%
4.00
standard
3.43
-14.3%
504.55
+13.6%
4.17
+4.2%
3.57
-10.7%
524.73
+18.2%
4.33
+8.3%
3.71
-7.1%
534.82
+20.5%
4.42
+10.4%
3.79
-5.4%

Lower gear ratios allow for higher top speeds.

Higher gear ratios increase torque for better acceleration.

Full Gear Ratio Chart (pdf)