Description
BBR Motorsports, Inc started in the Brown Brothers’ Parents’ garage around 1996 with the simple goal of making cool motorcycle parts. BBR has come a long way, from building XR100 swingarms in their parents’ garage, to becoming the winningest company in the history of the MinMoto SX. Over the years, BBR has been consulted by OEM motorcycle manufacturers, aftermarket motorcycle parts companies, bicycle manufacturers, tech publications, and even CAD/CAM software developers. BBR custom motorcycles and performance parts have been featured in hundreds of publications around the world.
Based in Enumclaw WA, BBR Motorsports continues to design and produce quality, high performance products for off-road playbikes. BBR Products can be purchased directly or through your local dealer. Dealers can purchase BBR products through the premier wholesale powersports distributors in the United States.
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 compression and large cooling fins enhance the performance and longevity of the motor. This is the only XR/CRF100 bore kit that matches the new rocker arms perfectly to the new high-performance BBR cam shaft. This kit is ready to go and bolts on with no case boring required. Dyno tests show more than 2HP gain with this kit. Fits ALL model year XR and CRF100’s. From 1981-Present year.
10 years in the making, this long-awaited kit rocks. Comes complete with custom “big finned” BBR aluminum cylinder, piston, rings, piston pin, clips, BBR exclusive motocross grind performance camshaft, HD valve springs, rockers with tappet adjusters, head and base gaskets. Exhaust and intake gaskets must be purchased separately.
Features:
Increased displacement
High compression
High performance camshaft with HD valve springs
New rocker arms and adjusters
BBR Large fin, aluminum cylinder with steel liner
58mm piston, ring set, piston pin & clips
Gasket kit including cylinder head and base gaskets
Fits 1981-Present year XR/CRF100’s
These items are designed exclusively for closed course competition use ONLY. Use on public lands or highways in the state of California is illegal.
Install Instructions:
For Instructions
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