NCY 2000 RPM Clutch Springs: GY6 125/150cc

Explosive Acceleration: NCY 2000 RPM High-Performance Clutch Springs

Eliminate sluggish takeoffs and transform your scooter's low-end power delivery. These NCY 2000 RPM Clutch Springs (Red) are engineered to delay clutch engagement until the engine reaches a higher power band. By allowing the engine to spin up to 2000 RPM before the clutch pads bite, you experience significantly faster off-the-line acceleration and improved throttle response.

Performance Advantages

• Aggressive Engagement: Raises RPM engagement above factory settings for a "racing" feel and instant power.
• High-Tensile Steel: Manufactured from premium spring steel to resist heat-fade and maintain consistent tension under racing conditions.
• Optimized for Tuning: The ideal upgrade for scooters with performance exhausts, big bore kits, or variator upgrades.
• Direct OEM Replacement: Designed to fit perfectly within the stock GY6 clutch carrier.

Detailed Model Fitment

These springs are designed for 125cc, 150cc, and 169cc GY6-based engines. This includes the following popular models:

Engine Code Reference

Compatible with most 152QMI and 157QMJ based engines, including:

157QMJ, 161QMK, 152QMI, 1P61QMK, YN1P57QMJ, 1P52FMI, 154FMI, JJ157QMJ, 1P57QMJ, BN157QMJ, BN161QMK-A.

Technical Specifications

• Engagement RPM: 2000 RPM
• Quantity: Set of 3 Springs
• Color: Red
• Hook-to-Hook Length: 35.8mm
• Spring Dimension:  L: 13.3, ID: 6.7mm, OD: 11.2mm
• Wire Outer Diameter: 2.2mm
• SKU: 1200-1025

Tech Tip: Heavier clutch springs require the engine to work harder to engage. If your scooter is purely stock, these 2000 RPM springs may feel very aggressive. For a milder boost on daily commuters, consider the NCY 1000 RPM or 1500 RPM springs.

Legal Disclaimer: This product is intended for off-road/racing use only and is not legal for use on public roads or pollution-controlled vehicles in California. Performance parts are not covered by warranty.

This product is intended for off-road use only.

This product is not intended for use on public roads or land.

This product is not legal for use in California on pollution-controlled vehicles. Check local laws before installing.

*Performance upgrades are considered racing parts and are not covered by warranty.

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