Cylinder Head Fits Honda XR125 and cg125 and Keeway models FOR Our 190 KIT Includes big Valves. And bigger head squish area for 190 65.50mm bigbore gas flowed /ported 28mm AND SPORT CAMSHAFT. We also do a 150 cylinder head to suit our 150 bigbore kit see other listing. Bigger valves /squish area to suit our 150cc 62mm bigbore kits.