This SDI Elite linkage assembly is designed for the 2018+ Yamaha YZ450, also benefiting 2009-2017 YZ450 models. It provides an optimized starting ratio for improved balance and comfort.

The system helps to eliminate the front-to-back rocking effect common on the YZ450. Its rocker arm features specially designed flexures to enhance comfort and traction.

• Optimized for 2018+ YZ450
• Fits 2009-2017 YZ450 models
• Improves balance and comfort
• Eliminates front-to-back rocking effect
• Rocker arm with special flexures for comfort and traction
• Comes with all bearings and seals
• Fits: Yamaha YZ250F 2019-2022, Yamaha YZ450F 2018-2022