Hi all. I am going to be re-lacing a 28inch (635mm), Raleigh roadster rim to a Sturmey Archer TCW hub. The rim I'm using is currently already laced and in use so I don't want to disassemble it just yet. Does anyone know what spoke length I'd need? Are the TCW hubs the same diameter as the AW hubs these bike's generally came with? Thank you