XR/CRF100 120cc Big Bore Kit with Cam
XR/CRF100 120cc Big Bore Kit with Cam is backordered and will ship as soon as it is back in stock.
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Item Fitment
Item Fitment
XR/CRF100 120cc Big Bore Kit with Cam - confirmed fit on the following bikes.
Shipping & Taxes
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).
XR/CRF100 120cc Big Bore Kit with Cam
Description
Description
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.
- 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
BBR General Jetting Guidelines Chart
Stock XR/CRF100 - 53.0mm bore, 45.0mm stroke
I would give a 4 star due to the fact it didn’t come with installation instructions but if you are doing it yourself anyways you should know a little mechanics. Super easy install I didn’t have any questions or concerns to even need instructions. Was even able to do install with motor still in frame. New carb and the bike came to life.
Easy installation
Easy to install. My boy is pumped with it. He figured it was like having a new bike.
Wakes the bike up! Much more fun. Install was straight forward same procedure as replacing a factory piston. Jetted the bike to BBRs specs. Still using stock pipe. Bike started first kick. Highly recommend.
Excellent kit perfect fit!
