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hippy
Nah, I don't know if modern PX 50mm come in clincher form but mine are a few years old and are tubs.
@hippy that's my logic too. I guess I was just wondering whether there were any more economical/sensible ways of achieving a good balance of flexibility/reliability and speed.
The FFWD has a claimed weight of 1195g, Flo90 has claimed weight of 1199g so there would definitely be a slight weight penalty. I don't know how much the Raltach cover would weigh, but Flo Disc weighs 1260g so probably slightly more than that.
A minor secondary consideration is that all the wheels in the new setup would have alu braking surfaces which would mean I don't have to faff with brake pads when swapping between race and training wheels.