The MM12P was BBR's only true complete spec motorcycle. Sold during the 2009 and 2010 model years, the MM12P is no longer available. The initial plan was to take our race winning designs and have them manufactured overseas. In the end, we produced the complete frame in our US shop and assembled them entirely in the US. Many of the high wear parts are still available and these bikes change hands on the used market all the time. We suggest watching eBay, Planet Minis, and Craig's List if you want to find one.

This page has some popular links to help you navigate our website for information on the BBR MM12P and help you find what you are looking for. If you have any questions, please feel free to contact us via e-mail or give us a quick phone call. Our staff is ready and waiting to help you make the most of your motorcycle.
Jetting Chart:
Bore and Stroke57.0 x 58.7 mm
Compression Ratio12.5:1
Spark PlugNGK CR8HSA
Valve ClearanceIN: .002" EX: .002"
Carb/main jet/pilot jet28mm Keihin / 125 main / 40 pilot
Transmission ratios2.615 / 1.706 / 1.182 / 0.916
Oil Capacity/Type/10W-40
Chain size/front sprocket/rear sprocket#420 chain; 13T/43T
Front tire size60/100 x 14
Rear tire size80/100 x 12
Seat height31 inches
Wheel Base46.5 inches
Weight138 lbs.
Part diagrams linkBBR MM12P Parts Diagrams (
Service manual link 
BBR MM12P Related Videos

2,071 views · 7 years ago

Duane Brown introduces the BBR MiniMoto 12" Production Race Bike.
January 2009
For more info. go to