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Cylinder Kit, Polini 80cc Big Bore for 50cc 4-Stroke Kymco, SYM Scooters

List Price: $399.99
Sale Price: $359.99
In Stock
Item Number: POL-CYKT-KYM-50M
Manufacturer: Polini
Manufacturer Part #: 125.0007
free shipping

Polini 80cc Big Bore 50mm Cylinder Kit for 50cc 4-Stroke Kymco, SYM, 139QMB Scooters

  • Cylinder Block
  • Piston
  • Piston Rings
  • Wrist Pin (13mm)
  • Circlips
  • Gaskets

  • BMS - Apache 50 4T, Heritage 50 4T
  • Diamo - Classic 50 4T
  • Gilera - Capri 50 4T, Ciclone 50 4T
  • Kymco - Agility 50 4T, Filly 50 4T, New Dink 50 4T, People S 50 4T, Sento 50 4T, Super 8 50 4T
  • Lance - Charming 50 4T, GTR 50 4T, Cali Classic 50 4T
  • Genuine - Buddy 50 4T
  • Roketa - Bahama 50 4T, Maui 50 4T, Sicily 50 4T
  • SYM - Fiddle 50 4T, Mio 50 4T, Symply 50 4T
  • Tank - Urban 50 4T, Sporty 50 4T, Viaggio 50 4T
  • Many Other 50cc 139QMB Based Engines
  • **This will not work on the QJ models

Aluminum big bore cylinder kit works on Kymco, Schwinn, QLink, Diamo, Tank, Verucci, Roketa, Meitian and most scooters with GY6 139QMB 4T engines.

Also do not forget your clutch, roller weights, and belt to use this new find power to better take off and no slip with Kevlar belts. Good size for roller weights for bottom end and not losing top end is 5 - 6 gram weights depending on rider's weight.

**NOTE: You will need to bore your engine to complete the installation. Please verify first before placing an order.

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