Scooterworks
Description
Unlock maximum displacement from your power plant with the RDLN 180cc Big Bore Cylinder Kit. Engineered to push the standard 150cc GY6 platform to its absolute performance limit, this kit features an oversized 63mm ceramic-composite coated cylinder bore. Delivering a massive increase in low-end torque and mid-range hill-climbing power, it is the ultimate upgrade for competitive track builds, high-load utility ATVs, and off-road go-karts.
Product Features
- Maximum Displacement: Boosts standard 125cc/150cc short or long-case variants up to a true 180cc (based on stock 57.8mm stroke).
- Optimized Heat Dissipation: Advanced cast alloy construction with precision cooling fins limits thermal saturation during continuous wide-open throttle (WOT) loads.
- Complete Top-End Package: Includes the 63mm cylinder barrel, matched light-alloy piston, performance wrist pin, dual circlips, high-tension compression rings, head gasket, and base gasket.
Technical Specifications
- Cylinder Bore Diameter: 63mm
- Sleeve Outer Diameter (Skirt): 64.9mm
- Cylinder Total Structural Height: 90.5mm
- Stud Spacing Fitment: Standard 54mm engine configurations
Expanded Model Fitment & Vehicle Engine Guide
This kit fits 4-stroke, 54mm stud-spaced GY6 engine cases (Engine Codes listed below) commonly utilized across a massive variety of street scooters, off-road buggies, and heavy-duty utility carts.
| Application Category | Known Compatible Models & Platforms (Case Boring Required) |
|---|---|
| Off-Road Go-Karts / Buggies | Hammerhead 150cc Series (GTS150, GT150, Twister), Carter Talon 150, Trailmaster 150 XRX/XRS, American Sportworks, Manco Helix 150 |
| UTVs & ATVs | TaoTao Bull 150, Rhino 150, Polaris Phoenix 200 (GY6 clone builds), SunL 150cc Utility series |
| Street & Sport Scooters | Genuine Buddy 150, ZNEN 150cc, Wolf Brand 150, Ice Bear, Bintelli, Lance, Jonway, Roketa 125/150 variants |
| Other 150cc Engine Codes | 157QMJ, 161QMK, 152QMI, 1P61QMK, YN1P57QMJ, 1P52FMI, 154FMI, JJ157QMJ, 1P57QMJ, BN157QMJ, BN161QMK-A |
Tuning Mechanic's Recommendation: To support the massive air/fuel demands of a 180cc upgrade, you must up-jet your factory carburetor or upgrade to a high-flow 26mm–30mm performance carburetor setup. For the ultimate pairing, consider matching this kit with a high-performance A9 or A12 camshaft to extract optimal top-end valve lift cycle coefficients.
Original Parts For Scooters SKU 164-310
Product Diagrams
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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.
