I found my old crank I thought I'd chucked which I think is the single ring version of the Spa cranks, or the one they are based on, so I took a punt on a 110mm threadless BB.
Seems to give an ok chain line with the ring on the back of the spider and wee a spacer behind the cog. Sorry about the awful pic but tried my best...
I found my old crank I thought I'd chucked which I think is the single ring version of the Spa cranks, or the one they are based on, so I took a punt on a 110mm threadless BB.
Seems to give an ok chain line with the ring on the back of the spider and wee a spacer behind the cog. Sorry about the awful pic but tried my best...