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SG75 cranks with a 103mm ISO BB?
Aren't they supposed to be 109.5mm? And who does a 102mm ISO? 103mm JIS and 102mm ISO are common. If you use a 102mm, your chainline will be 3.75mm inboard of whatever it's supposed to be, and there's a good chance that the spider will interfere with the chainstay unless it's both skinny and dimpled.
gbj_tester
@Philip_J_Fry
cross-post from transmission database...anyone running SG75 cranks with a 103mm ISO BB?