100cc Big Bore Head & Cylinder Kit Gy6 Cylinder, Piston & Rings for 4-stroke Gy6/QMB139 Engines
100cc Big Bore Head & Cylinder Kit Gy6 Cylinder, Piston & Rings for 4-stroke Gy6/QMB139 Engines is backordered and will ship as soon as it is back in stock.
Pickup available at 2875 N Berkeley Lake Rd NW #4
Usually ready in 1 hour
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100cc Big Bore Head & Cylinder Kit Gy6 Cylinder, Piston & R...
100cc Big Bore Head & Cylinder Kit Gy6 Cylinder, Piston & Rings for 4-stroke Gy6/QMB139 Engines is backordered and will ship as soon as it is back in stock.
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Description
Description
- Wide Compatibility: This kit fits most Chinese scooters and mopeds using GY6/QMB139 4-stroke 50cc–60cc engines. Compatible with popular brands and models, it offers a versatile and cost-effective way to boost engine output without replacing the entire engine, perfect for performance tuners and riders alike.
- Performance Boost: Take your ride to the next level with this 100cc Big Bore Kit designed for GY6/QMB139 engines. The increased displacement dramatically enhances acceleration, torque, and top-end speed, transforming a standard 50cc or 60cc engine into a high-performance machine ideal for both commuting and recreational riding.
- Improved Compression: Includes piston rings designed to deliver superior compression for improved combustion efficiency and power output. The wrist pin and circlips lock everything in securely, reducing engine knock and vibration while maximizing the engine’s smoothness and consistency under load.
- Durable Construction: Engineered from high-grade aluminum alloy and built to withstand high temperatures and pressure, this kit includes a precision-machined cylinder, piston, and ring set. The durable construction ensures long-term reliability and minimizes wear, even under aggressive or extended use on roads and tracks.
- Hassle-Free Installation: Designed for plug-and-play convenience, the Big Bore Kit comes with everything you need—cylinder, piston, rings, wrist pin, circlips, base gasket, and head gasket (head not included). Ideal for both professional mechanics and DIY enthusiasts looking for a quick, effective performance upgrade.
- Cylinder
- Piston & Ring Set
- Wrist Pin
- Cirq Clips
- Head Gasket
- Base Gasket
- HEAD NOT INCLUDED
- Fits most Chinese Scooters/Mopeds with 50cc, 60cc 4-Stroke GY6/QMB139 engines.
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