About this product

The KWI Yellow High Engagement (HE) Primary Spring is an aggressive performance upgrade for Can-Am QRS primary clutches — engineered specifically for drivers running Launch Control or 2-Step systems who want to build boost from a dead stop and get off the line as fast as possible. By raising engagement RPM to 2,800 RPM, the Yellow HE Spring gives you the ability to build boost before the clutch engages, delivering a harder, more aggressive launch with maximum acceleration right from the moment you drop it.

For drag racing, competitive riding, or anyone who wants the most aggressive takeoff their Can-Am can deliver, this spring is the upgrade that makes it happen. Paired with Launch Control or a 2-Step system, it transforms how your machine launches — more boost built, more power at engagement, and quicker acceleration through the full run.

Compatible with all Can-Am QRS (6-arm) style primary clutches. Does not fit PDrive primary clutches.

Why it matters

Launch Control without a high engagement spring is leaving boost — and time — on the table.

The factory primary spring engages too early to take full advantage of Launch Control or 2-Step systems. The KWI Yellow HE Spring raises engagement to 2,800 RPM so you can build boost before the clutch grabs — harder launch, more power at takeoff, and faster acceleration from a dead stop every single time.

What's Included

Spring