Pay in 4 interest-free payments of $43.75 Learn more
Ships within 48 hours · Estimated delivery Aug 29 - Sep 3
Includes Pick-Up Coil
NOTE: This is essentially the 12mm wrist pin version of our popular PRCK1 kit
Fits 157QMJ-based 150cc engines with the following codes:
we highly recommend pairing this with the NCY Big Valve Head (SKU 1100-1254)
Material: Electroplated billet aluminum
NCY 171cc Big Bore Kit - 61mm | No Case-Cut for GY6 GO MAX REAR WHEEL ASSY Includes Pick-Up CoilNCY 171cc Big Bore Kit (61mm) No Case Cut for GY6 150 The NCY 61mm Cylinder Kit is the only 171cc upgrade available in the U. S., designed to fit without machining your engine cases. Featuring a specialized 62. 9mm outer skirt, this aluminum cylinder drops directly into standard GY6 150cc blocks. It is the ultimate "weekend project" for riders demanding a massive jump in torque and acceleration without the need for professional machine shop services.
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