150cc Above Big-bore Kits
150cc Above Big-bore Cylinder Kits
We offer high-performance 150cc above big-bore cylinder kits suitable for various brands of motor scooters.
NMAX Cylinder Set 14pin 63mm
Enlarged bore. Stronger midrange. OEM-fit machining.
This Cylinder Kit for Yamaha N-MAX features a cast-aluminum cylinder with a Ø63 mm bore and 14 mm piston pin. The increased bore supports a larger displacement, delivering stronger torque potential and acceleration when paired with correct fueling and ignition adjustments. Each component is precision-machined to OEM specifications for reliable sealing and straightforward assembly.
Highlights
Ø63 mm Bore — Expands displacement for improved pulling power with proper setup.
14 mm Piston Pin — Common high-strength spec for performance durability.
Aluminum Cylinder Body — Lighter weight and faster heat transfer compared to cast iron.
Precision OEM Fit — Machined deck height, stud bores, and spigot match OEM tolerances.
Complete Package — Includes piston, rings, pin, clips, and gasket for a full rebuild.
Product Specifications
✔ Bore Size: Ø63 mm
✔ Piston Pin: Ø14 mm
✔ Cylinder Material: Cast aluminum
✔ Fitment: Yamaha N-MAX (confirm year/engine code)
✔ Package Includes: Cylinder ×1, Piston ×1, Piston Pin ×1, Circlips ×2, Piston Rings ×1 set, Cylinder Gasket ×1
Installation Notes
Measure deck height, compression ratio, and squish clearance for the 63 mm bore.
Adjust carburetor/FI and ignition timing to suit the displacement increase.
Confirm crankcase spigot clearance and always use new gaskets for sealing.
After break-in, recheck compression and fastener torque to ensure long-term stability.
Power You Can Trust.
NMAX Ceramic Cylinder Set 14pin 62mm
Ceramic-coated exterior. Enlarged bore. Built for stable sealing.
This Ceramic Cylinder Kit for Yamaha N-MAX uses an aluminum cylinder with a ceramic-coated exterior to improve durability against heat cycles and wear. With a Ø62 mm bore and 14 mm piston pin, it supports displacement increase for stronger midrange torque and smoother acceleration when paired with correct fueling and ignition adjustments. Each component is precision-machined to match OEM interfaces, ensuring proper sealing and straightforward installation.
Highlights
Ceramic-Coated Exterior — Reinforces the cylinder body against wear and thermal stress.
Ø62 mm Bore — Expands displacement potential for torque gains with proper setup.
14 mm Piston Pin — Standard performance size for strength and reliability.
Precision Fit — Deck height, stud bores, and spigot diameter machined to OEM tolerances.
Complete Kit — Includes piston, rings, pin, clips, and gasket for a full top-end service.
Product Specifications
✔ Bore Size: Ø62 mm
✔ Piston Pin: Ø14 mm
✔ Cylinder Material: Aluminum body, ceramic-coated exterior
✔ Fitment: Yamaha N-MAX (confirm year/engine code)
✔ Package Includes: Cylinder ×1, Piston ×1, Piston Pin ×1, Circlips ×2, Piston Rings ×1 set, Cylinder Gasket ×1
Installation Notes
Verify deck height, compression ratio, and squish clearance for the 62 mm bore.
Adjust carburetor/FI mapping and ignition timing to suit the displacement change.
Confirm crankcase spigot clearance; always use new gaskets for sealing.
After break-in, recheck fastener torque and compression to ensure long-term stability.
Power You Can Trust.
AEROX Cylinder Set 14pin 63mm
Enlarged bore. Stronger torque. OEM-fit machining.
This Cylinder Kit for Yamaha AEROX features a cast-aluminum cylinder with a Ø63 mm bore and 14 mm piston pin. The expanded bore supports displacement increase, giving the engine more torque and midrange power when paired with correct fueling and ignition setup. Precision machining ensures a clean seal and straightforward assembly for reliable performance.
Highlights
Ø63 mm Bore — Enlarged displacement for improved pull and throttle response.
14 mm Piston Pin — Standard strength spec for durability and compatibility.
Aluminum Cylinder Body — Lightweight design with efficient heat transfer.
Precision Fitment — Deck, stud holes, and spigot diameter machined to OEM tolerances.
Complete Package — Includes piston, rings, pin, clips, and gasket for a full rebuild.
Product Specifications
✔ Bore Size: Ø63 mm
✔ Piston Pin: Ø14 mm
✔ Cylinder Material: Cast aluminum
✔ Fitment: Yamaha AEROX (confirm year/engine code)
✔ Package Includes: Cylinder ×1, Piston ×1, Piston Pin ×1, Circlips ×2, Piston Rings ×1 set, Cylinder Gasket ×1
Installation Notes
Measure deck height, compression ratio, and squish clearance for the 63 mm bore.
Re-map carburetor/FI fueling and ignition to suit displacement change.
Confirm crankcase spigot compatibility; always install with new gaskets.
After break-in, recheck fastener torque and compression for stability.
Power You Can Trust.
AEROX Ceramic Cylinder Set 14pin 62mm
Ceramic-coated exterior. Precision bore. Stronger sealing.
This Ceramic Cylinder Kit for Yamaha AEROX uses a cast-aluminum cylinder with ceramic-coated exterior for improved surface durability and heat stability. The Ø62 mm bore paired with a 14 mm piston pin supports displacement increase and stronger torque potential once jetting and ignition are correctly set. Precision machining ensures tight fitment with OEM cases and gaskets, giving builders a reliable foundation for upgrades or rebuilds.
Highlights
Ceramic-Coated Exterior — Helps resist wear and heat cycling, keeping the cylinder shell stable.
Ø62 mm Bore — Larger displacement potential for stronger pull, with proper top-end setup.
14 mm Piston Pin — Standard performance spec for strength and compatibility.
Precision Machined — Deck, stud bores, and spigot diameter match OEM for leak-free assembly.
Complete Kit — All required piston, rings, pin, clips, and gasket included.
Product Specifications
✔ Bore Size: Ø62 mm
✔ Piston Pin: Ø14 mm
✔ Cylinder Material: Aluminum body, ceramic-coated exterior
✔ Fitment: Yamaha AEROX (confirm model year/engine code)
✔ Package Includes: Cylinder ×1, Piston ×1, Piston Pin ×1, Circlips ×2, Piston Rings ×1 set, Cylinder Gasket ×1
Installation Notes
Verify deck height, compression ratio, and squish clearance for the 62 mm bore.
Re-jet carburetor or re-map FI and ignition timing to suit the displacement increase.
Use new gaskets and confirm case spigot clearance before assembly.
Apply proper break-in procedure; recheck compression and fastener torque after heat cycling.
Power You Can Trust.