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@peahead1880
This bottom bracket shell is now the only thing i am not understanding. I've had the threads checked and they are not 26tpi that raleigh used but, they are 24tpi which was used when carlton was their own company.
All i am unsure of now is what BB to fit. A carlton corsa frame with 120 rear spacing and miche primato track hub (42mm chainline) and sugino messenger cranks. Stated length to use was a 103mm axle.
Being a 71mm BB shell, what approach do i take?!! I can work out everything else with chainline, just not sure which BB will give me the best adjustment. English threads by the way. (sorry if thas obvious)
Once i got this cleared up it's the home straight i think!!!