TB GPX & YX 146cc Top End KIT
OD of cylinder skirt is 59mm
Meets or Exceeds OEM Specifications.
Key Features:
- All aluminum cylinder with ceramic plated bore for greater heat dissipation 57mm (78mm tall)
- High compression piston
- Gasket kit included
This Kit is NOT for Stock Small valve heads
(Small valve GPX 124cc - Jialing 124cc ect)
ONLY for use with 23/27 Big Valve heads
(Piranha YX140cc - Lifan 125/140cc)