The change is small enough that that it would probably not be noticed by the majority of cyclists. However, for those that can detect it, is is a small enough that the rider should easily adjust to it.

Some of the change that will be felt will be due to the altering of the rider position. The saddle to bar height differential will be larger. The saddle will be slightly farther forward relative to the pedals. Angles of the bars and saddle change very slightly. Re-establishing the baseline position by adjusting these parameters will attenuate any noticeable effect.