Shop big bore kits for CRF110F | TTR110 | KLX110/L, along with a wide range of other pitbike models. Increase engine capacity, power and overall performance. Same day dispatch from Australia. Shipping worldwide.
All ProductsBig Bore KitsCRF50New ArrivalsPerformancePower Upgrades (+HP)
88cc Big Bore kit,20mm Carburetor kit, and Race Cam Performance Kit: Easily double your power and fun with this quality, yet economicalbore kit!! Kit...
All ProductsBig Bore KitsKawasakiKLX110/LNew ArrivalsPerformancePower Upgrades (+HP)
Easy bolt-on power. This is the largest bore kit available that does not require boring your engine cases for additional cylinder sleeve clearance. New...
All ProductsBig Bore KitsCRF70HondaNew ArrivalsPerformancePower Upgrades (+HP)
Engineered and developed by BBR. This cylinder retains skid plate mounts and includes: BBR aluminum cylinder, piston kit, and gaskets. Custom piston designed specifically...