Great job. I'm still waiting for the day when someone can modify the derailleur bike concept so that it includes a full chain case. I have an IGH bike with a full chain case, and the chain doesn't need to be lubed more than once or twice per year. As much as I miss derailleur bikes, it's hard to go back now that I don't have to maintain my chain or crankset and I never have to roll up my pant leg.