Prima 161cc Big Bore Cylinder Kit 58.5mm Genuine Buddy 125
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Prima 161cc Big Bore Cylinder Kit – 58.5mm – Genuine Buddy 125 Only
Make your Genuine Buddy 125 scream with this 58.5mm big bore 161cc performance cylinder kit, made for Prima by NCY. Pair it with a performance exhaust and gain 2.6 horsepower — a 36% increase in power. Add an NCY big valve head and push it to nearly 45% more horsepower over stock. Stack a 26mm carb on top and you’re in a different league entirely.
This kit is also included in our Stage 2 Buddy 125 Performance Kit. We also recommend installing our Decompression Tube Assembly with any cylinder upgrade to release excess crankcase pressure.
Key Benefits
- Displacement Increase: Bumps engine displacement from 125cc to 161cc for a meaningful power jump.
- More Torque & Horsepower: Significant gains in both low-end pull and top-end power.
- Greater Top Speed & Acceleration: Noticeably faster in real-world riding conditions.
- Best Dollar-for-Dollar HP Gain: This bolt-on kit delivers the biggest performance return per dollar spent.
Specifications
- Piston: Cast aluminum, 58.5mm
- Piston Rings: 5 rings, 58.5mm
- Wrist Pin & Clips: 13mm
- Cylinder: Cast iron, 58.5mm
- Outer Sleeve Diameter: 60.4mm
- Cylinder Height (without sleeve): 68.8mm
- Overall Height (with sleeve): 90mm
- Includes: Gasket set
Compatibility
Genuine Buddy 125 ONLY. This kit is not compatible with any other model or engine platform. Verify your vehicle before ordering.
Off-Road Use Notice
This product is intended for off-road use only. It 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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