Trkimal Upgrade Big Bore 50mm Cylinder Rebuild Kit for GY6 50cc 139QMB Racing Scooter Parts 64mm Valve Scooter Moped ATV Go Karts
Trkimal Upgrade Big Bore 50mm Cylinder Rebuild Kit for GY6 50cc 139QMB Racing Scooter Parts 64mm Valve Scooter Moped ATV Go Karts
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Trkimal Upgrade Big Bore 50mm Cylinder Rebuild Kit for GY6 50cc 139QMB Racing Scooter Parts 64mm Valve Scooter Moped ATV Go Karts

|2 ratings

Key item features

  • Engine Compatibility: Designed for upgrading GY6 50cc 4-stroke 139QMB engines, enhancing power for improved hill-climbing performance.
  • Key Specifications: Features a 50mm cylinder bore, 50mm cylinder head, 13mm piston pin, and a 64mm valve.
  • Comprehensive Components: Includes a cylinder head comp, cylinder body, piston, piston pin, piston ring, pin clips, valve rockers, oil pump, and oil sprockets.
  • Gasket & Hardware: Comes with a complete set of gaskets, rollers, and bolts for a full rebuild.
  • Broad Fitment: Compatible with numerous 49cc and 50cc 4-stroke scooters and mopeds, including models from Jonway, Baja, Baotian, Taotao, and more.
  • Versatile Application: Suitable for various racing scooter parts, mopeds, ATVs, and Go Karts utilizing the specified engine types.
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Current price is $55.97
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Columbus, 43215
Arrives by Sat, Apr 25
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Sold by taizhou city chuangtong trade co.,ltdPro Seller
Fulfilled by Walmart
4.070921985815603 stars out of 5, based on 141 seller reviews(4.1)
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Apr 12, 2026
Rose
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Sold bytaizhou city chuangtong trade co.,ltdDelivered byWalmart
5 out of 5 stars review

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working on putting it on may have to place another review after she starts running were working on her now. parts look good 👍 yet looks aren't everything. need to see how she runs, haven't got there yet.

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