TAIDA 55MM 23/20 BIG BORE KIT 139qmb GY6 50cc

  
Enhance the performance of your Kymco Agility 50 or 139QMB Chinese motors with the TAIDA 55MM BIG BORE KIT. The kit is compatible with various models of Kymco and Chinese 139QMB motor it is made of high-quality aluminum and steel materials to ensure durability and longevity. Casing need to be bored out to 58.5mm for the cylinder sleeves to fit. This is Bore Kit only no head included. MUST USE ONLY 23/20 VALVE CYLINDER HEADS.