big bore cylinder barrel kit aprilia rx50 rx 50 2006 2010 Kawasaki KDX50 Yamaha XT 250 Trail (1980-1984)

Yamaha XT 250 Trail (1980-1984)

Yamaha SRX 400 (XT600 Engine) (1991-1995)

Honda TRX 420 TE Fourtrax Rancher ES (2007-2009)

This set of head stock bearings are cup and cone style and have been manufactured to replace the original set of steering bearings on a CA125 for the years shown above

big bore cylinder barrel kit aprilia rx50 rx 50 2006 2010 Kawasaki KDX50 Yamaha XT 250 Trail (1980-1984)Brand new big bore cylinder barrel kit to fit: Aprilia RX 50 (2006 2018). This cylinder kit has been manufactured to upgrade the original top end on an Aprilia RX50 to 70cc for the years and models shown above. The kit includes the cylinder barrel jug, head, piston kit and gaskets. To upgrade D50B0 or D50B1 2 stroke engine from 50cc to 70cc. Chassis prefix: ZD4PVA ZD4PVH01 ZD4PVG01 ZD4PVL01 ZD4PVM01 ZD4PVSWA ZD4KKA0 ZD4KKA01.