NCY 1000RPM Torque Spring – Minarelli / Yamaha Zuma 50cc 2T CVT Transmission | 4.0mm Wire

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Upgrade your CVT performance with the NCY 1000RPM Compression Spring, designed for Yamaha Zuma 2-stroke 50cc and most Minarelli horizontal/vertical engine applications. This high-t ension torque spring increases RPM before upshifting, improving acceleration, belt tension, and overall responsiveness—especially when paired with tuned variators and clutch components. Whether you're replacing a worn spring or fine-tuning your transmission for better low-end pull, this NCY spring offers a perfect balance of strength and reliability. Fits Yamaha Zuma 2T 50cc & Most Minarelli Engines 1000RPM Spring Rate – Delays upshifting for stronger acceleration Specs: Wire Diameter: 4.0mm Inner Diameter: 44.0mm Length: 108.0mm Ideal for CVT Tuning – Enhances belt grip and power delivery Performance-Tested by NCY – Trusted brand for scooter upgrades Direct Replacement or Tuning Upgrade Show more