this isn't gong to be single speed as i don't have a single speed hub and gears are useful.
i found a 7 speed flat bar grip shift that works at the bottom of a parts box and a 7 speed shimano cassette - i've got some pretty knackered fulcrum 5s with a shimano 9/10 speed free hub on - with 3 1mm washers behind the cassette it fits on the freehub with no play...a spare 105 rear mech will get used too - i can't see a problem with this - as long as the shifter is indexed to match the cassette the derailleur will do what it's told by the shifter and shift fine right??
this isn't gong to be single speed as i don't have a single speed hub and gears are useful.
i found a 7 speed flat bar grip shift that works at the bottom of a parts box and a 7 speed shimano cassette - i've got some pretty knackered fulcrum 5s with a shimano 9/10 speed free hub on - with 3 1mm washers behind the cassette it fits on the freehub with no play...a spare 105 rear mech will get used too - i can't see a problem with this - as long as the shifter is indexed to match the cassette the derailleur will do what it's told by the shifter and shift fine right??