I fitted a set to my drop bar Roberts, no probs at all. Then when my raven arrived i transfered them to that but the rear one was to short, my solution was to buy a length of 5mm stainless threaded bar and cut it to the required length, unscrew the end from the pitlock spindle, screw it on the new length of bar, drop of thread lock and all is sorted. That was my way of doing it and have no probs at all..Plus 'I' still have a nice set of hoops. Use them it will save you a lot of grief when someone else might want your wheels..