JT SPROCKETS Countershaft Sprocket - 17 Tooth - Yamaha JTF424.17

A 17-tooth countershaft sprocket directly impacts your acceleration curve and top-end performance—smaller tooth counts pull harder off the line but sacrifice highway cruising. If you're looking to sharpen your Yamaha's throttle response and extract quicker gear engagement, this JT Sprockets upgrade delivers the geometry and material durability to handle sustained performance demands without premature wear.

JT Sprockets' SCM420 chromoly steel construction means this sprocket resists the constant torque cycles that stock components struggle with, especially under aggressive riding or track use. The precision-engineered tooth profile ensures clean, efficient power transfer to your chain while minimizing drivetrain noise and shock.

• 17-tooth countershaft design
• SCM420 chromoly steel
• Precision-engineered tooth profile
• Yamaha motorcycle specific
• Bolt-on installation
• Enhanced acceleration response
• Increased service durability
• MPN: JTF424.17