NCY Performance Compression Spring | Yamaha Zuma 125 (2022+)

Description

The NCY Performance Compression Spring is a direct-fit clutch spring upgrade for the 2022+ Yamaha Zuma 125, available in three engagement rates — 1000, 1500, and 2000 RPM — to suit a range of riding styles and performance setups. The compression spring controls the RPM at which the centrifugal clutch engages: a softer spring (lower RPM) allows the clutch to bite earlier for smoother, more relaxed takeoffs, while a stiffer spring (higher RPM) delays engagement until the engine is deeper into its powerband, producing a more aggressive, performance-oriented launch. Selecting the right spring rate is one of the most cost-effective CVT tuning adjustments available.

• Fits: 2022+ Yamaha Zuma 125 (liquid-cooled, 4-valve)
• 1000 RPM — early engagement; smooth, low-RPM clutch bite; ideal for relaxed urban riding
• 1500 RPM — mid-range engagement; balanced performance and rideability; closest to OEM feel
• 2000 RPM — late engagement; aggressive, high-RPM launch; best paired with performance exhaust and variator upgrades
• Compatible with OEM and NCY clutch assemblies
• Direct drop-in replacement — no modifications required
• Sold individually

California Residents: This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit P65Warnings.ca.gov.