Can anyone tell me why (if) a rear wheel built with a 135mm hub would be stronger than a wheel built on a 130mm hub? This is assuming all thing are essentially equal: spokes, rims, axle diameter, hub flange thickness? Looking at the Shimano specs, the 130mm road hub axles and bearings are the same size as the 135mm mountain's axles and bearings. I've measured the flanges on our road bike hubs, and they are the same thickness as our mountain bike hubs. I have heard less dishing, but that seems like it would just be lateral rigidity.