JT Sprockets

Online Catalogue

Honda CA125 S Rebel

1995 to 2001

Front Sprocket

Steel Front Sprocket

Part Number: JTF270

Teeth: 13

Available Sizes: 12, 13, 14, 15

Rear Sprocket

Steel Rear Sprocket

Part Number: JTR273

Teeth: 39

Available Sizes: 30, 33, 39, 40, 41, 42, 44, 45

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
12131415
Rear Sprocket302.50
-16.7%
2.31
-23.1%
2.14
-28.6%
2.00
-33.3%
332.75
-8.3%
2.54
-15.4%
2.36
-21.4%
2.20
-26.7%
393.25
+8.3%
3.00
standard
2.79
-7.1%
2.60
-13.3%
403.33
+11.1%
3.08
+2.6%
2.86
-4.8%
2.67
-11.1%
413.42
+13.9%
3.15
+5.1%
2.93
-2.4%
2.73
-8.9%
423.50
+16.7%
3.23
+7.7%
3.00
standard
2.80
-6.7%
443.67
+22.2%
3.38
+12.8%
3.14
+4.8%
2.93
-2.2%
453.75
+25.0%
3.46
+15.4%
3.21
+7.1%
3.00
standard

Lower gear ratios allow for higher top speeds.

Higher gear ratios increase torque for better acceleration.

Full Gear Ratio Chart (pdf)