However Dirtbreath, consider this if you will - One of the so called major advances in Bike drivetrain technology has been the testing of HTD (Hi Torque Drive) belts to replace the chain. As a drivetrain supplier, designer and manufacturer, I feel that the belt has to be a better option. The problem up until now has been how to shift.
Now with a HS in the front, a Rholoff at the back and a belt in between, the chainline remains constant at all times. There is no chain growth, no derailleur jump and the entire drive can be enclosed and sealed against the elements. Belts are not nearly as susceptable to dirt, require no lubrication,have equal or better wear characteristics etc. etc.
The only thing that has stopped me building such a machine has been a severe lack of funding. Not only do you need an 18K rohloff but an HS and, at about the same cost, a frame,bb,crank combo to suit the HS. Anybody got some tom for a bit of R&D and a coupla beers?
