TB Parts 114cc Big Bore Kit, Honda TRX90. 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 low compression dished or flat top piston).
This 114cc Big Bore Kit will make a huge difference in performance over your stock setup and is a very quick and easy upgrade. We also have a jet kit for the OEM TRX90 carb to work with this big bore kit. Bolting this big bore kit on makes your TRX90 much more fun to ride!This is also an alternative to expensive OEM parts if your TRX90 needs a rebuild. Have any questions or concerns? Please send us a message and we will gladly help with any questions you may have. We have been in the motorcycle parts industry for over a decade and are here to help.