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@FatManOnAFixie
Can anyone offer any advice to this little problem I'm currently playing with.
I've been "gifted" (some might call it dumped on!) a 2nd Hand Carrera Subway Zero. Its a purpose built SS/FG Halfords-esque cash in on the SS/FG market as far as I can see but at heart its too good to send to the knackers yard just yet and I could do with a back up to my trusty 34 y/o Dawes conversion.
Its been used as a 4 mile-a-day station to work to station bike by a work colleague. Maintenance is a bad word in his book and has pretty much been non-existent, my book differs but there y'go! Anyway, underneath the grime and neglect is a purpose built 'modern' (ish) bike I want to use so I started fettling it during lunchtimes and after-work. The Brakes didn't, but after fettling and block replacement do now. The bottom bracket was creaking, so I replaced with a same 113.5mm replacement. Chain is totally beyond it, no biggie to replace.
The Rear wheel however is where things start hotting up. The original got damaged, so the owner replaced it not really knowing anything about O.L.D or chainline. Frame spacing is 126mm but the owner bought a 120mm O.L.D replacement. He only realised this when he went to fit, being in a workshop nearby he asked me to have a look and I ended up using washer's as spacers to make up the 6mm or so and he was stoked he could ride it again and has done for about 3 years. He doesn't need it anymore so he remembered me and donated it.
I've measured the chainline at the rear wheel and its 42mm... however at the BB it's closer to 51/52mm! s far as I know 42mm is usual for FG/SS flip flop hubs yes? So... did Carrera use wider hubs originally to get the chainline out to 52mm or so at the rear or summat? Or is it that I'm missing something really obvious here.
I've replaced the original clapped out BB with the same 113.5mm width, its a standard 68mm housing, English thread, nothing trickster that I can see. The frame doesn't look bent or nowt as far as I can see.
Help! (Please).
Dave.