TB 114cc bore kit, Race Head, & 24mm carb kit – TRX90 All Models TBparts 114cc big bore kit, V1 Race head, and 24mm carb for use with stock air box. Starting with the V1 cylinder head’s larger 25 22mm stainless steel (21-4N) valves, better porting, larger cam, improved valve geometry and superior quality this…
114ccBore Kit, Race Head, Mikuni VM26 Carb Kit and Race Cam for 86cc through 107cc Engines: – NEW Race Head – Larger valves (now25 22mm) and better flow for increasedperformance. Also has bigger cooling fins. Includes all necessary parts andcomes assembled!– High performance race camshaft– Lightweightaluminum cylinder with steel sleeve (huge weight savings over your stock castiron cylinder)– Cast…
TB 114cc High Compression Big Bore Kit – All TRX90 Lightweight aluminum cylinder with steel sleeve (huge weight savings over your stock cast iron cylinder) Cast in mounts on cylinder for aftermarket skid plates Oversized cooling fins on cylinder for efficient heat dissipation High compression 54mm piston with rings, pin, & clips (replaces your lowcompression dished…
TB Bore Kit – 120cc120cc XR100 & CRF100 Big Bore Performance Kit (58mm): Aluminum cylinder with steel sleeve High compression 58mm piston with rings, pin, & clips Head gasket kit This affordable 120cc Big Bore Kit will make your XR100 or CRF100 a lot more fun toride by adding some much needed power, This kit…
TB 132cc Big Bore Kit This TB CRF110 132cc big bore kit is a great performance upgrade for all year models of the popular Honda CRF110. With the larger bore, this bolt-on upgrade kit will give you more power and higher compression for a very reasonable price. This is an ideal option if you’re looking…
TB 143,165, & 178cc Race Head V2 and Intake Upgrade Kit TB Race Head V2 and Intake Manifold Kit –  This kit is a powerful upgrade kit for people who already have either our 143cc, 165cc, or 178cc bore kit.  It adds our Race Head V2 and Intake Kit to your existing big bore…
TB 143cc Big Bore Kit, 60mm – KLX110 All Models TBparts 143cc big bore kit for all KLX110s, an affordable setup that will really make your KLX110 fly! High quality parts and requires no machining to the cases or other modifications – bolt on and go! This kit includes all the necessary top end gaskets….
TB 143cc Bore Kit for V2 Race Head (60mm): Ceramic coated all aluminum cylinder (no steel sleeve) Lightweight high compression domed 60mm piston with rings, pin, & clips (for the V2 Race Head only) – Head gasket kit – Now includes the cylinder head o-ring set and an exhaust gasket If you already have our V2 Race…
TB 143cc Bore Kit & Performance Camshaft – KLX110 2003-09 Models 143cc 60mm Big Bore Kit with Performance Camshaft: TBparts 143cc big bore kit with our NEW bolt on performance camshaft. The combination of these parts amplify the results! The cam opens up the valves more so the larger bore kit can breathe better resulting in even…
TB 143cc Bore Kit & Performance Camshaft – KLX110 2010-16 Models 143cc 60mm Big Bore Kit with Performance Camshaft: TBparts 143cc big bore kit with our NEW bolt on performance camshaft kit. The combination of these parts amplify the results! The cam opens up the valves more so the larger bore kit can breathe better resulting in…
TB 143cc Bore Kit & Performance Camshaft – KLX110 2017+ Models 143cc 60mm Big Bore Kit with Performance Camshaft: TBparts 143cc big bore kit with our NEW bolt on performance camshaft kit. The combination of these parts amplify the results! The cam opens up the valves more so the larger bore kit can breathe better resulting in…
TB 143cc Bore Kit, Race Head V2, and Intake Manifold Kit TB 143cc Big Bore Kit, Race Head V2, and Intake Manifold Kit – If looking for more power for your Z125, you’ve come to the right place! The parts in this kit were developed to work flawlessly with each other to deliver a high level of…
143cc Race Head V2, Upgrade Kit: 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 Lightweight high compression domed 60mm piston with rings, pin, & clips Head gasket kit – includes the cylinder head o-ring set and…