This dimension has to do with what kind of frame the bottom bracket fits, and has nothing to do with the crank. That is why I was after the UN We have very reasonable shipping terms and combine orders to save money for customers on shipping costs. By worrptangl in forum Singlespeed Replies: I'm guessing that is closer than the mm. Being a newbie that loves to wrench and do my own work I have used the Mr. Good luck! Posting Rules. I have a sec of sc and i matched it with a dura ace simetric. Since ebay no longer allows sellers to leave neg. Thread Tools. I will pack the items together and refund the difference between what you paid for shipping and the actual shipping cost. If you purchase more than one item at the same time. I was looking for something to tell me what type of BB I had so I knew what type of tools I would need to remove it. All rights reserved. Please make sure your address is correct at time of checkout. Square taper.