J
JeffWills
Guest
> Has anyone taken a Twenty bottom bracket down that far, or is 73 the
> limit?
>
> ---
> Lars Lehtonen
Many, many years ago I used a Raliegh Twenty BB shell for a recumbent
project. After filing it down to 68mm width and retapping it for
"standard" English threads, it worked fine.
I think you'll be OK- you might want to saw off a slice off of each
side, then mill the sides after tapping.
Jeff