Gaz96 Posted August 2, 2011 Report Share Posted August 2, 2011 (edited) So ordered my Shimano SLX ranks for my MTB as recommended, took my old bb out and it doesnt list what size it is on it so I cant tell what my frame is... 68mm or 73mm,can I measure to see? What part is it im measuring? EDIT: Just went and checked myself and im guessing its the length of the BB shell cause I just checked this measurement and I got 68mm so I guess i've got t figured! Edited August 2, 2011 by Gaz96 Quote Link to comment Share on other sites More sharing options...
stephenmx50 Posted August 3, 2011 Report Share Posted August 3, 2011 you need to measure the outer shell width. http://www.tartybikes.co.uk/media/guides/product_guide_cranks_and_bottom_brackets/m16.html Quote Link to comment Share on other sites More sharing options...
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