Originally Posted by
Singlespd
BMX axles are usually a larger diameter and would have to be ground down to fit a road bike drop out. That and they are usually only 110mm spacing
Some bmx hubs have oversize axles and use 9t drivers. However bmx racing hubs have normal axles and take regular shimano type SS cogs. The OLD is 110, so respacing is necessary. I use a bmx hub on my SS.