The Porta Catena is an elegant solution to the small problem of where to put the chain when transporting your bike. A problem solved by Dave Moulton by brazing a nail head to the right seat stay of his frames. The spacing of the rear hub and maybe the wheel dish will need to be fiddled with in order to have clearance for the chain when it is on the smallest cog. Once you have made these changes it works quite well. Rodney Handsfield, Wichita