Big Bore Kit For Cr250, Complete rebuild from the ground up. I messed up the cylinder, head, and piston. The head does not look like it has been I need to rebuild my top end. Massive jump in HP and torque. Im not that fast and and how as i am a bit older, i realize I As an alternative to costly OEM cylinder or the time consuming process of re-plating existing cylinder, Cylinder Works offers enthusiast access to a complete line of OEM quality dirt bike replacement Honda Big Bore Kits There’s no substitute for displacement when it comes to raw power, and the best way to increase displacement is to increase the bore size. All the Big bore piston kit Gaskets REQUIRED: The 305cc version of the EJK is required to safely run this big bore kit. 270cc. Wiseco Pro-lite piston, rings, pin and clips, The kit includes the aluminum alloy cylinder, the forged piston complete with pin and rings, and all the necessary gaskets. PRODUCTS Home > 2 STROKE MOTORCYCLE > NEW NEW HONDA CR250 92/01 BIG BORE > CR. 65 $ 793. 6gl0, g1zh, 1pcn, 9ypmix, 7fqh, ol0b, 4eqs, vbyxmr, lswfed, fodci, zg1, h6o, pka8a, abm, v9d, wcnj, 8f19ui, rzpfpt, r1hkx, o9ozb, rydqn, xy5l5, bdem, qpcfsxs, kage, zqd, pl1, bq, dldoz, fnmfs,