EPI Primary Drive Clutch Spring for Snowmobiles and ATVs

EPI Primary Drive Clutch Springs, also called primary clutch springs or drive clutch springs, let you tune how your snowmobile, ATV or UTV CVT clutch engages. The primary spring helps set engagement RPM and top-end RPM. Changing it lets you adjust throttle response for your riding style, terrain and setup.

Key Features:

• Tunable performance: Fine tune clutch engagement and top RPM to the feel you want.
• Quality material: Made from high-quality chrome silicon spring wire.
• Tight 5% tolerance: Consistent, repeatable performance from spring to spring.
• Durable construction: Resists heat, fatigue and wear for reliable performance ride after ride.
• Wide selection: The line covers many spring rates so you can match the spring to your machine and application.

EPI Performance has designed and manufactured CVT clutch kits and drive belts for UTVs and ATVs for over 35 years. These primary springs are a simple, affordable way to dial in clutch performance for trail, work or extreme off-road use.