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Innovative 4-Stroke Performance Products

BBR  |  SKU: 411-HXR-8001

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

$22995 USD
This item will ship Monday

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

Customer Reviews

Based on 20 reviews
95%
(19)
5%
(1)
0%
(0)
0%
(0)
0%
(0)
R
Ryan Slovinsky
BBR is Five Stars

I ordered the big bore kit and it arrived fast. In less than a weeks time I had an old tired 80cc xr to a 95cc new to me motor. My wife is getting into riding and loves her 80. Thank you BBR !!! for a great product I will be order the crf100 kit from you in the near future.

a
aaron Kenefick
Fresh top end to save old bike.

I purchased this xr80-95 cc big bore kit to save a 1986 XR. Lots of life left in the bike. I was sceptical of fitment because of the very broad fitment years. But everything worked as it should. Fit and finish were perfect. Kit worked very well after getting the carb and opening up the air box with the UNI air box vents.

S
Scott Cowen
New cyl

Came timely works well good product

D
Daniel Champagne
Beaucoup de compression

Bien construit, pareil à l’original mais 15% plus gros piston.

J
Jim G.
95.6cc big bore w/performance can and rockers

With exhaust and supertrap muffler, big carburetor, I ported head also . So much power it will scare an adult. My gearing is perfect. Long gearing . Third gear your gone.

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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