NCY
NCY 1000 RPM Contra Spring - Yamaha Zuma 125 / Vino 125
Description
NCY 1000 RPM contra spring (also called a compression or secondary spring) for Yamaha 125cc 4-stroke scooters. Dark-coated high-fatigue silicon-steel construction resists tension loss over time, keeping your CVT settings consistent even after thousands of miles. The 1000 RPM rating delays upshifting slightly longer than stock, keeping the engine in its power band for better hill climbing and mid-range response. Provides faster back-shifting when you get back on the throttle in stop-and-go traffic. Made in Taiwan by NCY. Sliding weights not included.
Key Features:
- 1000 RPM rating — delays upshift slightly for better mid-range punch and hill climbing
- High-fatigue silicon-steel construction resists tension loss (“spring sack”) over time
- Dark-coated finish for heat and corrosion resistance in the rear pulley environment
- Faster back-shifting (downshift response) for improved stop-and-go rideability
- NCY-stamped wire for easy identification | Made in Taiwan by NCY
- Pair with 10g or 11g roller weights for best all-around performance on a Zuma 125
- Does not fit 2022+ liquid-cooled Zuma 125 or standard GY6 150cc engines
Specifications:
- Brand: NCY
- SKU: 1200-1003 | MPN: 619A09MJ10
- RPM rating: 1000 RPM
- Spring length: 116mm
- Inner diameter: 54.5mm
- Wire diameter: 5.0mm
- Material: High-fatigue silicon-steel
- Made in Taiwan
Compatibility:
| Make | Model | Notes |
|---|---|---|
| Yamaha | Zuma 125 (BWS) | 2009–2021 air-cooled models only |
| Yamaha | Vino 125 | All years |
| Yamaha | BW’s 125 | All Gen 1 & 2 models |
| Yamaha | Cygnus X 125 | Select models requiring 116mm length |
Off-road / competition use only. Not intended for use on pollution-controlled vehicles. Check local laws before installing. Not covered under warranty.
Product Diagrams
Features
Specifications
Brand: NCY | SKU: 1200-1003 | MPN: 619A09MJ10 | RPM Rating: 1000 RPM | Length: 116mm | Inner diameter: 54.5mm | Wire diameter: 5.0mm | Material: High-fatigue silicon-steel | Origin: Taiwan
Model Fitments
Yamaha Zuma 125 (BWS) 2009-2021 air-cooled only | Yamaha Vino 125 all years | Yamaha BW's 125 Gen 1 & 2 | Yamaha Cygnus X 125 select models (116mm length) | Contra / secondary spring position | Does NOT fit 2022+ liquid-cooled Zuma 125 or GY6 150cc
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Same day shipping for orders placed before 2PM (CST) M-F
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30-day return period on eligible items
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Flat-rate shipping for orders shipped to the 48 Contiguous United States.
