Q
~ Q ~
Guest
I got my bike back from some serious upgrading yesterday. The Claud
Butler 531 frame is now 30yrs old & originally had 126mm dropouts. It's
been re-sprayed twice, had a new bottom bracket shell, cantilever & rear
carrier bosses brazed on & now a 135mm XT rear hub - up from my
irreplaceable 130mm screw-on 7sp Sachs sprocket.
The old Ultegra 38/50 chainset has been replaced by a splined 30/42/52
Ultegra with a 9sp 11-21 block & new Ultegra front mech. The new rotary
shifters seem to work perfectly (the drops went long ago - not
neck-friendly after 30yrs). The chainline is spot on (even if there's
only a 0.8mm gap between inner & chainstay, the Q factor is the same as
the double was. When the Shimano chain wears out - back to Sachs!
This little project cost me ~£360, including new rear wheel. I hummed &
ha'd over spending so much on such an old bike due to potential
compatibility issues but am pleased everything works so well & was worth
it. Thank you Freewheel in Reading Had Scram continued with the Sachs
screw-on blocks, the damage would have been for that, a new chain &
rings - ouch! A triple & close ratio block works rather nicely. Now for
my MTB; new wheels, new headset, new XT chainset/BB combo, new...
--
The map is not the territory
Butler 531 frame is now 30yrs old & originally had 126mm dropouts. It's
been re-sprayed twice, had a new bottom bracket shell, cantilever & rear
carrier bosses brazed on & now a 135mm XT rear hub - up from my
irreplaceable 130mm screw-on 7sp Sachs sprocket.
The old Ultegra 38/50 chainset has been replaced by a splined 30/42/52
Ultegra with a 9sp 11-21 block & new Ultegra front mech. The new rotary
shifters seem to work perfectly (the drops went long ago - not
neck-friendly after 30yrs). The chainline is spot on (even if there's
only a 0.8mm gap between inner & chainstay, the Q factor is the same as
the double was. When the Shimano chain wears out - back to Sachs!
This little project cost me ~£360, including new rear wheel. I hummed &
ha'd over spending so much on such an old bike due to potential
compatibility issues but am pleased everything works so well & was worth
it. Thank you Freewheel in Reading Had Scram continued with the Sachs
screw-on blocks, the damage would have been for that, a new chain &
rings - ouch! A triple & close ratio block works rather nicely. Now for
my MTB; new wheels, new headset, new XT chainset/BB combo, new...
--
The map is not the territory