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.
Shipping information
Orders are prepared as quickly as possible. Delivery times and shipping costs are calculated at checkout based on the destination and items ordered.
Returns & warranty
Please verify fitment and part number before ordering. Contact Thrifty Scooters promptly if an item arrives damaged or incorrect.