NCY 1500 RPM CVT Compression Spring | Vino / Zuma 125

The NCY 1500 RPM CVT Compression Spring is specifically engineered for the Yamaha Vino 125 and Zuma 125 (BW's 125). The compression spring controls two critical CVT functions: it supplies the pressure needed to engage the drive belt, and it determines the rate at which the transmission shifts from low to high gear. A higher RPM spring delays the upshift, keeping the engine in its powerband longer for improved mid-range pull.

Reference: A 1000 RPM spring upshifts sooner (smoother, earlier engagement); a 2000 RPM spring upshifts later (more aggressive, holds low gear longer). This 1500 RPM spring sits between stock and aggressive.

Key Features

• 1500 RPM shift point — delays upshift for improved mid-range pull vs. stock
• Specifically engineered for Yamaha Vino 125 and Zuma 125 / BW's 125 CVT cases
• Controls belt engagement pressure and gear ratio transition rate
• ISO 9001 certified, manufactured in Taiwan by NCY since 1997

Specifications

• Engagement RPM: 1500
• Wire Diameter: 5.0mm
• Inner Diameter: 54.5mm
• Length: 116.0mm
• MPN: 619A09MJ15
• Origin: Taiwan (ISO 9001 Certified)

Compatibility

This product is intended for off-road/racing use only. Not legal for use in California on pollution-controlled vehicles. Performance upgrades are not covered under warranty.

California Prop 65 Warning: www.p65warnings.ca.gov

• 1500 RPM shift point — controls the rate at which the CVT transitions from low to high gear
• Specifically engineered for Yamaha Vino 125, Zuma 125 (BW's 125) CVT cases
• Higher RPM spring vs. stock for improved mid-range pull and delayed upshift
• ISO 9001 certified, manufactured in Taiwan by NCY since 1997

Engagement RPM: 1500 | Wire Diameter: 5.0mm | Inner Diameter: 54.5mm | Length: 116.0mm | MPN: 619A09MJ15 | Origin: Taiwan

Fits Yamaha Vino 125 (all years) and Yamaha Zuma 125 / BW's 125 (all years). Verify CVT case dimensions before ordering if unsure.