I prefer a bicycle rather than bike...With bicycle I can exercise much better...Especially on an uneven undulating road..The extra energy to pedal an upward slope with panting breath has its own benefits and then after reaching a peak, I just put my leg off the pedal & the bike picks up acceleration and I enjoy the smooth breeze gushing past me! What a pleasant and ebullient occasion! My last cycling was in Jaisalmer from my cottage to the new airport (which is awaiting inauguration)