Hi @clubman, yes the chainring is rubbing against the chainstay using a NGCC spindle,
The original BB is too pitted to reuse.
The chainstay has already been tapered so I don't really want to weaken the tubing any more than it is.
I agree though I think it's good to use the shortest axle you can, however a single speed axle gives no wiggle room at all.
FYI in my quest for the correct size axle, I accidentally bought a new old stock Bayliss tandem size 21 spindle if anyone needs one.
Hi @clubman, yes the chainring is rubbing against the chainstay using a NGCC spindle,
The original BB is too pitted to reuse.
The chainstay has already been tapered so I don't really want to weaken the tubing any more than it is.
I agree though I think it's good to use the shortest axle you can, however a single speed axle gives no wiggle room at all.
FYI in my quest for the correct size axle, I accidentally bought a new old stock Bayliss tandem size 21 spindle if anyone needs one.