The 61 PS (62 HP) is for the earlier engine before the EU and EPA made them detune the engine. The Euro fuel injected bikes have the same ratings as the carburetted ones. Later on when they get the system sorted and fine tuned, they might be able to return to decent valve timing and still meet emissions standards. But, for now, the main difference is that you get a very complicated mess of electronics that not only can't you mess with as easily, but you won't be able to fix it if it breaks.
