TAIDA SCOOTER PERFORMANCE BIG BORE CYLINDER & HEAD UPGRADE KIT 52mm QMB139

  

TAIDA 50cc QMB139 4-STROKE 52mm, RACING BIG BORE CYLINDER & HEAD KIT. KIT INCLUDES CYLINDER, PISTON, RINGS, PISTON PIN, CIR CLIPS, CYLINDER HEAD, HEAD GASKET, AND BASE GASKET.

WHEN USED IN CONJUNCTION WITH A STOCK STROKE OF 41.4mm THE TOTAL DISPLACEMENT COMES OUT TO 87.9cc. WHEN USED WITH A 44mm STROKER CRANK. CYLINDER SLEEVE OUTER DIAMETER: 54.4mm. TOTAL PISTON HEIGHT: 36.3mm.

COMPRESSION HEIGHT (FROM CENTER OF WRIST PIN HOLE TO TOP EDGE OF PISTON): 20MM. INTAKE PORT DIAMETER: 20.8mm. EXHAUST PORT DIAMETER: 18.7mm. USES SHORT 64mm VALVE STEMS.

FITS MOST MODELS OF, JMSTAR, ROKETA, SUNL, TANK, PEACE, TAOTAO, GATOR. PLEASE LOOK AT PHOTOS PROVIDED. FITS MANY MODELS LIKE JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, TAOTAO, GATOR.

TAOTAO, WOLF, ICE BEAR, JMSTAR. ROKETA, SUNL, TANK, PEACE, COUGAR, GATOR AND MANY OTHERS.

THIS PART SHOULD BE INSTALLED BY A PROFESSIONAL MECHANIC. THANKS FOR YOUR INTEREST IN OUR PRODUCTS.