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Is there a NJS alivio crank I'm not aware of?
No, but shimano BBs are JIS. I'm happy to fix up most things, but cartridge BBs you may as well just get a new shimano one in that'll do the job for years, the fixed cups aren't really designed to be removed or refitted and you're not gaining anything from saving the sugino and might end up fucking it up and need a new one anyway.
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shimano BBs are JIS
Well aware, UN300 is simply not produced with the corresponding spindle length.
not gaining anything from saving the sugino
except the satisfaction inherent to taking apart and servicing things not meant to.
@AITOR
more power to you.
Is there a NJS alivio crank I'm not aware of?
@AITOR
SKF 6002RS are 3GBP a pop.
Go ahead if you have a bearing drift/puller.
I've refurbed a few Campag cartridge BBs, 10min job.
It's fascinating folks still don't think twice before throwing shit away in 2022.