hi , just purchased 2nd bike a 26" single speed cruiser .about to purchase 66cc rock solid engine, dellorto carb, expansion chamber, hp cdi with lead and later on down the track high compression head with ceramic piston etc.. my big dilema is that i love the idea of the shift kit, (1st bike i ran a 36t rear sprocket and stop starting around town annoying). so deciding as to what to do on this cruiser would love to run an internal geared hub(either nuvinci or shimano alfine) or wether i should just place a cassette on the back and have a derailer changing my gears??? i'm wondering if anybody else has used or runs the internal geared hubs and wether or not they are worth it and also any unforseen problems they may arise. any thoughts or help would be greatly appreciated. ps.. this bike is going to be my pride and joy so its not about the money to me, just the best outcome.. cheers!!