FITS MANY SHIMANO OCTALINK MTB CHAINSET MODELS, INCLUDING SHIMANO CRANK BOLTS FOR OCTALINK MTB CHAINSETS. THESE BOLTS ARE SUPPLIED WITH SHIMANO ACERA / ALTUS OCTALINK CHAINSETS. BUT ALSO SIUTABLE FOR ANY OTHER SHIMANO ALIVIO OR ENTRY-LEVEL DEORE MTB CHAINSETS WITH OCTALINK BB INTERFACE.
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