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For those who want arm-jerking power, this kit is for you. This complete 106cc package includes a 50mm stroker crankshaft and 52mm BBR cast aluminum cylinder. The cylinder retains mounts for the skid plate installation. The ultimate combination of horsepower and performance. No case boring required.Fits Honda XR/CRF50 and XR/CRF70 engines.
BBR General Jetting Guidelines Chart
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