RDLN GY6 Big Bore Kit 180cc – 63mm

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.

CRITICAL INSTALLATION WARNING: Because the cylinder sleeve outer diameter measures 64.9mm, this kit may require machined widening of your engine case to accommodate the larger sleeve. Attempting to force-fit without case modification will damage the cylinder jacket. Use our specialized Engine Case Boring Tool (SKU: 202-37) to complete this modification.