• I've checked the Transmission Database but couldn't see an answer so I'm hoping some knowledgeable soul may be able to help..... just bought these retro Chorus cranks which I believe are 9 speed and part of the deal included a Shimano B/B with Italian cups (seems wrong, JIS-v-ISO?), my frame has British threads so wanted confirmation if a standard 102mm axle is correct for this model, fingers crossed! Griff


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