JT Sprockets

Online Catalogue

Husqvarna 125 SMS

2011

Front Sprocket

Part Number: TBA

Teeth: 14

Available Sizes:

Rear Sprocket

Steel Rear Sprocket

Part Number: JTR822

Teeth: 49

Available Sizes: 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53

Aluminium Rear Race Sprocket

Part Number: JTA822

Teeth: 49

Available Sizes: 44, 45, 48, 49, 50, 51, 52, 53

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
14
Rear Sprocket412.93
-16.3%
423.00
-14.3%
433.07
-12.2%
443.14
-10.2%
453.21
-8.2%
463.29
-6.1%
473.36
-4.1%
483.43
-2.0%
493.50
standard
503.57
+2.0%
513.64
+4.1%
523.71
+6.1%
533.79
+8.2%

Lower gear ratios allow for higher top speeds.

Higher gear ratios increase torque for better acceleration.

Full Gear Ratio Chart (pdf)