i have 5 bikes one mountain bike 26" wheels one TT bike and 3 road bikes. Two of the road bikes have 126mm drop outs the other two road bikes is 130mm. In the 126mm dropouts i use 130mm hub wheels. Before i think to have one set wheels and good tires for the tt bike and road bikes and swap them when i go for ride. But that take time replace cassette how do you keep up with tires innertubbes wheels cyclocomputer in your bikes.