BBR 88cc Big Bore Piston Kit XR/CRF50 | 411-HXR-5211. Fitment:Honda XR50R (2000-2003)Honda CRF50F (2004-2017)ONLY WORKS WITH BBR SUPER PRO HEAD- BBR 88cc Big Bore Piston Kit XR/CRF50 | 411-HXR-5211.
BBR 240cc Big Bore Piston Kit CRF230F | 410-HCF-2301. Fitment:Honda CRF230F (2003-2020)Big bore kit for the CRF230F. This is the quickest way to add power to your bike. Great when combined with BBR's exhaust system, Rev-Box, and Free-Flow airfilter. Your OEM cylinder will need to be machined... - BBR 240cc Big Bore Piston Kit CRF230F | 410-HCF-2301.
BBR 195cc Big Bore Piston Kit CRF150F | 411-HCF-1911. Fitment:Honda CRF150F (2006-Present)High quality bore kit that shows substantial power gains throughout the RPM range.All new design9.8:1 compression ratio65mm pistonComplete Big Bore Kit Can Be Found HERE... - BBR 195cc Big Bore Piston Kit CRF150F | 411-HCF-1911.
BBR 170cc Piston Kit KLX140 | 411-KLX-1811. PISTON KIT ONLY, CLICK *HERE* FOR THE FULL BIG BORE KITHigh quality bore kit that shows substantial power gains throughout the RPM range. 63mm piston. 10.5:1 compression ratio allows use of premium pump gas. Complete kit includes: cylin... - BBR 170cc Piston Kit KLX140 | 411-KLX-1811.
BBR 130cc Big Bore Kit KLX/DRZ110 | 411-KLX-1101. Technical InformationFitment:Kawasaki (2002-Present)Suzuki (2003-2005)An easy bore in kit that increases your 110 motor to 130cc. Includes piston, rings, pin, clips, and gaskets. A quick and inexpensive way to really wake up y... - BBR 130cc Big Bore Kit KLX/DRZ110 | 411-KLX-1101.