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80cc Big Bore Kit 69MM - Cylinder Head Piston Rings Set Chinese Scooter 50cc 60cc GY6!!

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Product Description

80cc Big Bore Kit Cylinder Head Piston Rings Set Chinese Scooter 50cc 60cc GY6!!

This kit fits most Chinese Scooters/Mopeds with 50cc, 60cc 4-Stroke GY6/QMB139 engines!!!  This will increase your powerband anywhere from 50-75% so be ready to go faster!!! 

For a kit with 64mm Valves, Please Click Here!

Included in this big bore set is:

  • 1x Cylinder
  • 1x Head Assembly, (69mm valves)
  • 1x Piston: 47.7mm
  • 1x Wrist Pin
  • 2x Head Gaskets
  • Complete Ring Set

Fits: Alpha sports, Avanti, Baja, Bam X, Baotian, Bashan, BMS, BMX, Boreem, CF Moto, Cross Runner, CoolSports, Diamo, E Ton, Eagle, Fushin, Fly, GMI,  Hensim, Hi-bird, Ice Bear, Jackel, Jet Moto, JCL, JM Star, Jonway, Kazuma, Keeway, Kinroad, KMD, Kymco, Lance, Lifan, Linhai, Loncin, Longbo, Maxtrade, MDI, Meitien, Motofino, Motorino, NST, Panterra, Panther, Peace Sports, Red Streak, Redcat, Roketa, Schwinn, Strada, Sunl, SYM, Tank, Tao Tao, Terminator, Tomberlin, TNG, United Motors, Vento, Verucci, Wildfire, X-Treme, Yamati, ZNEN, and Zongshen!

If you need a 64mm Valve kit see

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