Full Access, KRX & KRX4 "SOFTER" Primary Clutch Spring

Run a primary spring. Just run the right one.

The Full Access UTV “Softer” Primary Clutch Spring for the KRX and KRX4 is designed to fix a real-world problem we’ve seen over and over. Running without a primary spring leads to excessive belt heat, poor drivability, and unnecessary wear. This spring keeps things working the way they should, without the downsides of the stock setup.

By reducing spring force while maintaining proper clutch function, it helps keep belt temps down, improves drivability, and gives you a better overall riding experience.

• Softer primary spring with over 50% less force than stock
• Helps reduce belt temperature buildup
• Prevents excessive clutch weight pressure on rollers
• Reduces premature wear and potential clutch damage
• Slight reduction in cruising RPM
• Compatible with a wide range of clutch weight setups

• Running without a primary spring can cause excessive belt heat and drivability issues
• Designed to maintain proper belt engagement while reducing unnecessary load
• May slightly lower RPM and feel less aggressive without clutch weight adjustment
• Performance can be tuned by adjusting clutch weights (moving weight or removing tip weight)
• Recommended for riders experiencing high belt temps or inconsistent clutch behavior

• Remove primary clutch assembly
• Replace existing spring with softer primary spring
• Reinstall clutch assembly
• Adjust clutch weights if needed to dial in performance
• Test ride and monitor belt temperature