Bore Kit - 95cc  XR/CRF80, 79-13 - 411-HXR-8001

Bore Kit - 95cc XR/CRF80, 79-13



SKU: 411-HXR-8001

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Bore Kit - 95cc XR/CRF80, 79-13

BBR introduces the first complete big bore kit for the CRF80 (and XR80)! Our new bore kit includes the cylinder making for a quick and easy upgrade. It features a 52 mm high compression piston resulting in a displacement of 95.6 cc. This kit includes the head gasket, base gasket, and intake gasket. 10.0:1 compression ratio lets it run on pump premium gas. As for all BBR bore kits, we recommend using enthanol free gasoline (see

Works with stock camshaft and valve springs or optional BBR performance camshaft (part number 411-HXR-1020 listed in Optional Parts below). OEM Kehin PC18/20 carb works great with minor rejetting.

  • 52 mm piston
  • 95.6 cc displacement
  • 10.0:1 compression ratio
  • Includes new aluminum cylinder, piston, rings, pin, clips, head and base gaskets
  • Fits CRF/XR80 model years 1979 - 2013
  • Works with BBR CRF/XR100 camshaft (see optional parts below) or OEM camshaft

BBR General Jetting Guidelines Chart

Stock XR/CRF80 - 47.5mm bore, 45.0mm stroke

Item Fitment - Please note this item fits the following bikes
Honda CRF80 (2004-2013)
Honda XR80 (1985-2003)