Just wondered if anyone knows of any in production? Cant seem to find any.
I remember reading an article on an engineer looking to put his design of one into production. I think it worked ok on a single speed and hub geared bike but was too weak for a derailleur system. I think it had a much extended life over a metal one and if used with plastic sprockets and rings it was virtually maintenance free.
Just wondered if anyone knows of any in production? Cant seem to find any.
I remember reading an article on an engineer looking to put his design of one into production. I think it worked ok on a single speed and hub geared bike but was too weak for a derailleur system. I think it had a much extended life over a metal one and if used with plastic sprockets and rings it was virtually maintenance free.