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Innovative 4-Stroke Performance Products

BBR  |  SKU: 411-HXR-8001

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

$22995 USD
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Item Fitment

Big Bore Kit - 95cc XR/CRF80, 79-13 - confirmed fit on the following bikes.

  • 2004 - Present Honda CRF80
  • 1985 - Present Honda XR80

Shipping & Taxes

We pride ourselves on fast shipping on all orders. Orders placed before 5PM EST will ship the same day Monday - Friday (excluding holidays, and the occasional day off for riding).

US Customers - Taxes (if applicable) will be charged at checkout.

International Customers - Duties/Taxes will be paid at the time of delivery (not checkout).

Description

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 ethanol free gasoline (see www.pure-gas.org).

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 re-jetting.


  • 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


Replacement Items

Gaskets - 95cc Bore Kit / XR/CRF80, 79-13
411-HXR-8010
Piston Kit - 95cc Bore Kit / XR/CRF80, 79-13
411-HXR-8011
Ring Set - 95cc Bore Kit / XR/CRF80, 79-13
411-HXR-8012

Customer Reviews

Based on 2 reviews
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D
David Milligan
Great upgrade for the money

Needed a new top end for the xr80 this was a very cost effective and the bonus of adding a little more power to the xr80. Great quality, easy to follow instructions.

J
Jesse Cozad

I rebuilt my 1986 XR80R with BBR’s 95cc kit and could not be happier!! My daughter has pretty much demanded every time I ride to take her around as well! It’s a whole new bike even with its vintage characteristics and riding geometry. You can’t go wrong. I also used their cam

BBR Motorsports

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

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

$22995 USD

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 ethanol free gasoline (see www.pure-gas.org).

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 re-jetting.


  • 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


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