i have the original shimano 105 hubs on my 1987 Raleigh Centenary, i'd like to replace the 6-speed cassette with a new one (either 6 or 7 speed), with similar ratios to the original (13-24 IIRC).
the gears are indexed so if i get a 6 speed it needs to be compatible, if i fit a 7 speed i'll switch the lever to friction.
the rear hub is definetely a push-on freehub (not a screw-on freewheel).
i tried to fit a new (i.e. modern) shimano 7-speed cassette but the notches do not line up with those on the freehub.
where can i get a 6 or 7 speed cassette that will fit, it does not have to be shimano. if anyone has got one for sale that they know will fit (either new or in excellent condition) please PM me.
or am i better off getting the freehub body swapped for a newer type, so that in future i can use normal push-on fitment cassettes?
88 Raleigh Kelloggs Pro Tour (Reynolds 501) - owned from new
90 Raleigh Eclipse (Reynolds 501)
82 Raleigh Competition (Reynolds 531) SOLD
87 Raleigh Centenary (Ltd Edition no. 72 of 100, with gold plated Reynolds 531C frame)
88 Raleigh Esprit (owned from new)
90's Raleigh Ascender MTB (owned from new)