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Description: NCY 52mm 88cc Cast-Iron Cylinder Kit with a Cast Aluminum Piston for 139QMB. Want a real screamer? Then this 88cc big bore kit for you, although it’s not a bolt-on item for most 139QMB bikes. Most of the time, engine cases must be cut. Order part number 1400-1001, Engine Bore Tool if th..

Description: NCY 58.5mm 161cc Cast-Iron Cylinder Kit with a Cast Aluminum Piston. Give your Buddy 125 based scooter some serious power with this bolt on 161cc kit for most Buddy 125 engines. As far as we know, this is the only 58.5mm cylinder kit for the Buddy 125 engine that exists in the US. With ..

Description: NCY 61mm 171cc Cast-Iron Cylinder Kit with a Cast Aluminum Piston. Give your GY6 based scooter some serious power with this bolt on 171.3cc kit for most GY6 125/150cc engines. As far as we know, this is the only 61mm cylinder kit for the GY6 engine that exists in the US. With most 61mm ..

Description: NCY 52mm 88cc Aluminum Performance Cylinder Head with 2-Valves' 21.5mm intake / 19mm exhaust. Great quality alloy cylinder head designed to work seamlessly with 1100-1237 88cc cylinder kit. Give your 139QMB the power to actually get some respect.Note: Rocker arm assembly (part # 1100-13..

Description: NCY Cylinder Head 58.5mm Wear-Resisting 2 valves with larger intake / exhaust ports will allow your GY6 125/150cc+ 2-Valve Cylinder to breathe better! Also, works for Buddy 125cc when used in conjunction with NCY Cylinder 58.5mm 161cc Big Bore Kit (Part# 1100-1287).NCY Cylinder Head 10m..

Description: NCY 61mm Cylinder Head Wear-Resisting 2 valves with larger 27.5 intake / 23.5 exhaust ports will allow your GY6 cylinder to breathe better! Works great with our 61mm cylinder assembly. 10mm diameter head allows for extra clearance between your wrench and the head for easy access. When c..

Description: Complete NCY Engine Gasket 61mm Set. Includes crankcase-right, head, base, exhaust, intake, secondary air, tensioner, time cover, transmission, and valve cover gaskets.Specifications: •    1x CVT Cover Gasket (Fit 16.125" shortcase ONLY)•    1x Fiber Base G..

Description: NCY Piston Rings made by Prima for your Genuine Buddy 50cc scooter. Will fit NCY Prima Cylinder Kit: 47mm, 10mm Pin, 72cc.Specifications:•    47mm Piston Rings Set•    Fits Part #PRCK1Supported Models: Genuine Buddy 50, Roughhouse 50, Genuine Buddy 50, Mina..