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TB Parts

114cc High Comp Bore Kit - 86cc to 107cc Engines - TB Parts - TBW9089

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  • $ 168.95

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114cc High Compression Bore Kit for 2 Valve 86cc through 107cc Engines


- 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)
- Head gasket kit

This will make a huge difference in performance over your stock setup and is a very quick and easy upgrade.  For additional performance, add the 24mm or 26mm carb kit available in this section (both work great with this setup).  This kit will work on all 86cc through 107 Chinese engines with a 49.5mm stroke except models with a 3 valve head. 

We recommend purchasing a high volume oil pump kit (available in this section). 

Installation Note: It will save a lot of time and effort if the oil pump is installed while installing the bore kit (requires cylinder removal).