JT Sprockets

Online Catalogue

Honda XR250 RL,RM,RN,RP,RR,RS — Australia

1990 to 1995

Front Sprocket

Steel Front Sprocket

Part Number: JTF327

Teeth: 13

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

Rear Sprocket

Steel Rear Sprocket

Part Number: JTR301

Teeth: 40

Available Sizes: 39, 40, 45, 48

Drive Chain

Pitch: 520

Length:

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
1112131415
Rear Sprocket393.55
+15.2%
3.25
+5.6%
3.00
-2.5%
2.79
-9.5%
2.60
-15.5%
403.64
+18.2%
3.33
+8.3%
3.08
standard
2.86
-7.1%
2.67
-13.3%
454.09
+33.0%
3.75
+21.9%
3.46
+12.5%
3.21
+4.5%
3.00
-2.5%
484.36
+41.8%
4.00
+30.0%
3.69
+20.0%
3.43
+11.4%
3.20
+4.0%

Lower gear ratios allow for higher top speeds.

Higher gear ratios increase torque for better acceleration.

Full Gear Ratio Chart (pdf)