The BTS-1 is a precision tool system which provides a piloted means of tapping the threads in the bottom bracket shell of a frame. After tapping, the taps act as guides to keep the included facing cutter perfectly square with the axis of the bottom bracket for cleanup of the faces of the bottom bracket shell.
The BTS-1 includes English taps, 1.370" x 24 TPI right hand thread for the adjustable cup, and 1.370" x 24 TPI left hand thread for the fixed cup.
Italian thread taps, 36mm x 24 TPI right hand thread (Part #693), for the adjustable and fixed cups are available as accessories.
Buy Park Tool Bottom Bracket Tapping & Facing Set from Chain Reaction Cycles, the World’s Largest Online Bike Store.
Rated 3 out of 5 by Anonymous what a bargain price - I bought 2 because they offered such good value
11 June 2009
Rated 4 out of 5 by Anonymous Expensive but if worth it if you do a lot of frame prep.
I've had one of these for a couple of years now and it gets used regularly (I build a LOT of bikes). It certainly isn't cheap but if you want to ensure that your frame is prepared as well as possible (very important with high quality components & especially HT2 BB's!) then it's a fantastic investment.
If Park were to shave (pardon the pun) £100 or so off the price then I'd give it 5 stars but as it stands it's very much reserved for serious mechanics or tool fetishists (and you know there's a few of you out there).
09 November 2008
Rated 5 out of 5 by Anonymous Mad price
Wow what a lot of dosh for a bike tool. There are rumours that the Americans are hoping to fund the bank bail out by selling each and every China person one of these tools, on account that they are the only people in the world with any money still, and they have lots of bikes with wonky bottom brackets. Good luck Bush Baby!
30 September 2008