JT Sprockets

Online Catalogue

Cagiva 125 N90

1990 to 1992

Front Sprocket

Steel Front Sprocket

Part Number: JTF711

Teeth: 14

Available Sizes: 12, 13, 14

Rear Sprocket

Steel Rear Sprocket

Part Number: JTR698

Teeth: 42

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

Drive Chain

Pitch: 520

Length: 108

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
121314
Rear Sprocket393.25
+8.3%
3.00
standard
2.79
-7.1%
403.33
+11.1%
3.08
+2.6%
2.86
-4.8%
413.42
+13.9%
3.15
+5.1%
2.93
-2.4%
423.50
+16.7%
3.23
+7.7%
3.00
standard
443.67
+22.2%
3.38
+12.8%
3.14
+4.8%

Lower gear ratios allow for higher top speeds.

Higher gear ratios increase torque for better acceleration.

Full Gear Ratio Chart (pdf)