BBR 88cc Big Bore Kit XR/CRF50 | 411-HXR-5400. Technical InformationFitment:Honda XR/CRF50 (2000-Present)Convert your CRF/XR50 to an 88cc screamer with this complete kit. Everything is included to upgrade the performance of you mini-bike. This kit uses your stock CRF/XR50 cylinder head.Aluminum BBR cylinderSpecial 52mm piston specially designed to work with your stock cylinder head's combustion chamberBBR special grind camshaft take full advantage- BBR 88cc Big Bore Kit XR/CRF50 | 411-HXR-5400.
BBR 88cc Big Bore Kit CRF/XR70 | 411-HXR-7001. Fitment:Honda XR/CRF70 (1997-2012)Engineered and developed by BBR. This cylinder retains skid plate mounts and includes: BBR aluminum cylinder, piston kit, and gaskets. The most reliable kit available. Runs great with stock carb or bolt o... - BBR 88cc Big Bore Kit CRF/XR70 | 411-HXR-7001.
BBR 150cc Big Bore Kit w/ Cam TTR125 | 411-YTR-1201. Technical InformationFitment:Yamaha TTR125 (2000-Present)Complete kit requires no exchange. Cylinder is custom made and features the BBR logo. Includes high performance BBR MX Grind camshaft.Increased displacementHigh performance MX camshaftBBR alumi... - BBR 150cc Big Bore Kit w/ Cam TTR125 | 411-YTR-1201.
BBR 143cc Big Bore Kit w/ Cam DRZ/KLX110 | 411-KLX-1403. Technical InformationFitmentKawasaki KLX110L (2010-2016)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 aluminum cylinder with plated aluminum lin... - BBR 143cc Big Bore Kit w/ Cam DRZ/KLX110 | 411-KLX-1403.
BBR 143cc Big Bore Kit w/ Cam KLX/DRZ110 | 411-KLX-1401. Fitment:Kawasaki KLX110 (2003-2009)Suzuki DRZ110 (2003-2005)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 aluminum cylinder with plated aluminum... - BBR 143cc Big Bore Kit w/ Cam KLX/DRZ110 | 411-KLX-1401.
BBR 120cc Big Bore Kit XR/CRF100 | 411-HXR-1001. Technical InformationFitment:Honda XR/CRF100 (1981-2013)BBR Motorsports celebrates one of the best selling dirt bikes of all time with this high-compression 120cc big bore engine kit for the XR/CRF 100. Increased displacement, higher compressio... - BBR 120cc Big Bore Kit XR/CRF100 | 411-HXR-1001.
BBR 175cc Big Bore Kit w/ Cam CRF150F | 411-HCF-1501. Technical InformationFitment:Honda CRF150F (2003-2005)Big bore kit for the 2003-2005 CRF150F. A simple bore in bore kit that includes BBR's high performance camshaft and valve springs for added performance. This cam features higher lift and duration ... - BBR 175cc Big Bore Kit w/ Cam CRF150F | 411-HCF-1501.
BBR 132cc Big Bore Kit CRF110F | 411-HCF-1151. Fitment:Honda CRF110F (2013-Present)New! Now fits the 2019 and newer motors with EFI. Easy bolt-on power for your CRF110F. This is the largest bore kit available that does not require boring your engine cases for additional cylinder sleeve clear... - BBR 132cc Big Bore Kit CRF110F | 411-HCF-1151.