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61mm Cylinder Piston Set/Big Bore Kit 2V, 54mm Stud Spacing Fit For Scooter GY6-170 161QMK / 152QMI 157QMJ GY6 125 150 upgrade

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$41.85

$ 20 .99 $20.99

In Stock
  • Power recovery: effectively improves compression ratio, improves power output and acceleration performance.
  • Reliable material: heat-resistant and pressure-resistant, more stable operation.
  • Good heat dissipation: cylinder design conducts heat quickly, which helps to maintain temperature balance during long-term driving.
  • Strong sealing: tight fit, reduces leakage and improves efficiency.
  • Recovery performance: quickly restores startup and operation status.
  • High-Performance Upgrade:Enhance your scooter's performance with a 61mm big bore kit, boosting power and efficiency.
  • Precision-Engineered Fit:Designed for GY6-125/150 engines, the kit ensures a perfect 54mm stud spacing for a secure fit.
  • Easy Installation:This kit includes everything needed for a straightforward installation process.
  • Comprehensive Kit:Comes with a 61mm cylinder block, piston, pin, circlips, rings, and gaskets for a complete upgrade.
  • Durable Construction:Constructed with a 61mm cylinder and 60.5mm piston for long-lasting reliability and durability.


Cylinder stud spacing: 54mm
Inner Diameter of Cylinder Block: 61mm
Outer Diameter of Cylinder Block: 64mm
Cylinder Stud Spacing: 54mm
Cylinder face to face height: 69mm
Cylinder overall height: approx. 89.4mm
Piston Diameter (bottom end): 61mm
Piston Diameter (top end): 60.5mm
Piston overall height: 38.5mm
Piston Compression Height: 20mm
Piston Pin Outer Diameter: 15mm
Piston Pin Length: 48.4mm
Application:
GY6-170cc scooters or ATV / QUAD
GY6-125 GY6-150cc engine upgraded to 170cc
ATTENTION:
Please make sure you will check if your cylinder stud spacing (distance between stud hole center to hole center) is 54mm. If your cylinder stud spacing is 57mm, our this item does NOT fit.
Do not Drive faster than 50 km/h at running-in period (500km-800km usually) to avoid cylinder scoring.
Package included:
61mm Cylinder Block, 61mm Piston, 15mm Pin, Circlips, Piston Rings, head gasket and base gasket.
Model Name : GY6-170
:


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