Hi folks, I've posted an intro here http://www.retrobike.co.uk/forum/viewto ... 3#p2933053
I have an early eighties Dawes Fox with 2 x 5 Shimano gears (SR range I think). Chain rings are 52/40 and the freewheel 28-14. Top gear is perfect but I live in the South Downs and would love to have...