BP is made by Martec. Like someone else said, it was labled a Mongoose back when it was developed for the Olympics (possibly for the Australia??...but I have also seen a bike design that is similar, but way cleaner lines which was also an Australian olympic project). I bought mine way back when they first started selling them. They sold for $350 for the frame and fork, and were advertized with a lifetime guarantee. I figured that I could not go wrong. It is a good frame. It is a little heavy; although I have mine around 19lbs with disc (setup as seen). I have gone though ony one frame which developed a crack in the 'downtube' around the insert to the internal derailleur cable routing. The only other problem is that if the chain falls off on the inside of the chainring, it jams HARD between the frame and chanring. I have made a semi solution by gluing a piece of aluminium flashing in the spot where the chain would land, but it does have a tendency to do this if the derailleur is not set up right (also I have a 54-39 chainring set which is a little non-traditional, and causes some setup problems). I use a Corima seatpost turned around backwards to give me a seat angle of 79 degrees as far as I can tell. This is why I need the large size frame since I need more 'toptube' distance to get the forward seat position (with this I still need a 125 stem length). Let me know if there are any other questions you might have. It is a good frame, and in lieu of a Hotta (which I really wanted, but could not afford) it was a good compromise.
Stephen Judice
I believe my local reality has been violated.
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Happiness = Results / (Expectations)^2