Description
A worn or inadequate counter shaft sprocket directly impacts your bike’s acceleration response and overall drivetrain efficiency. The JT Sprockets 12-tooth counter shaft sprocket is engineered for maximum strength-to-weight ratio, delivering the precision engagement your engine demands without unnecessary rotational mass. Whether you’re fine-tuning gearing for track performance or replacing OEM wear, this sprocket combines proven durability with JT’s reputation for uncompromising quality.
Technical Specifications:
- MPN: JTF427.12SC
- Tooth Count: 12
- Application: Counter shaft
- Material: High-grade steel
- Computer-designed geometry
- CNC-precision manufactured
- Heat-treated construction
- Bead-blasted finish
- Reduced surface tension
- Exceeds OEM standards
- Minimal weight penalty
- Bolt-on installation









