
dpcars is taking words out of my mouth here. Probably the biggest point I'd like to highlight is exactly what type of controller you're going to use for a bike. You need a clutch handle, a brake handle, a brake pedal, a gear 'pedal' that moves up and down, handlebars that rotate, a throttle that rotates, and the ability to lean without falling over. I just can't see it being viable - maybe there's a very good reason nobody markets home bike-simulator controllers?
Sam