Listing is for Cylinder Head Fits Honda XR125 and cg125 Honda for Our 150 KIT Includes big Valves. And bigger head squish area for 150 bigbore. And 62mm 150 piston kit and gaskets and performance cam shaft.
And a Mikuni vm26 carb and ported alloy manifold set up for 150cc. (allows you to fit higher compression piston kit). Just re bore your 125 cylinder to 62mm.
This kit is for electric start bikes With 13mm pin piston. (WE DO KICKSTART ONLY TYPE ENGINE TYPE TOO 15MM GUDGEON PIN JUST ASK). All Berlt Uk parts full guaranteed. IMPORTANT BERLT BIGBORE KITS ARE FOR COMPETITION USE ONLY. TRACK DAYS / DIRT RACING/ CLOSED CIRCUIT RACING ONLY.
NOT SUITABLE FOR ROAD USE. (We must state this as these are learner legal 125cc bike s).