Moves from BB30 classic frame (bottom bracket 42x30) to a standard BSC 68mm bottom bracket.
Fits in your BB30 classic frame the glue provided.
You can adapt without affecting your frame BB30 classic, any pedals axis of 24mm like all Shimano, Rotor Agilis and 3D, FSA MegaExo, SRAM and Truvativ GXP in.
Warning, this may be irreversible depending on the material and the composition of your frame.