Originally Posted by
admino69
but would both bbs work on the same frame or is 1 bb made for a specific type of frame??? cause i hav a spanish 19mm bb and wanna run my dmr cranks on my leader trk v1.5. willl it work?
They're different sizes, and the bb's on the frames are made to accept only the one size bearing.
And kinetik, with a euro bb being smaller, they're mostly used more on the track or on fixies/road bikes. American is just a mid in a cup.