Originally Posted by
JohnDThompson
One caveat: Bianchi had frames built in both Italy and Japan. If the OP's frame is an Italian-made frame, it will likely need an Italian thread bottom bracket. If it's a Japanese built frame, it will use an English thread bottom bracket.
John - English and American threads are slightly different though they have the same number of threads per inch and the same diameter. Japan makes American threaded bottom brackets though over the counter most American threaded BB's are referred to as English. The difference is the shape and depth of the threads.