RDLN GY6 Big Bore Kit 180cc - 63mm mesh Genuine Urbano 50

Genuine Urbano 50

Ultralight large shoe racing clutch

NCY GY6 50/139QMB 50mm bore Cast Iron Cylinder Kit w/o head

Cast-Iron Cylinder: 63mm

62P Rating: 93 mph speed rating with 584 lb load capacity at 40 PSI

RDLN GY6 Big Bore Kit 180cc - 63mm mesh Genuine Urbano 50Unlock 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