143cc V2 Head Race Head, Big Bore Kit, and Mikuni VM 26mm Carburetor for KLX110 – Race Head V2 – Roller rockers, 30mm intake valve, 24.5mm exhaust valve,27mm intake port, 23mm exhaust port (valves installed).– Race Camshaft V2-1 for Race Head V2– Ceramic coated all aluminum cylinder (no steel sleeve)– Lightweight high compression domed 60mm piston with rings, pin, & clips– Head gasket kit – includes the cylinder head o-ring set and an exhaust gasket.– Genuine Mikuni VM 26mm Performance Carb (Not a cheap Chinese copy carb)– Race Head V2 Intake Kit– Jet kit with 3 different sizes for varying conditions and exhausts (Stock size is a #190 – Extra jets sizes of155, 165 & 175)– Throttle Cable– Foam Air Filter These are high quality parts and require no machining to the cases or other modifications - bolt on and go! This kit is special order - ONLY. Specify year when ordering. (2010 + models require a different Cam sprocket - thats why the increase in price)