KiwiD

im buying this frame soon: https://www.ebay.com/itm/300546431404...ht_1528wt_1037

its an un-branded visp.
anyways i waaas going to buy the IRO drive train kit seeing as it has everything i need for a low price, but the BB is 110mm and the frame says: B.B Shell 68MM English Thread, Suggest to use 103-107MM axle B.B parts.

and since im new to building bikes im kinda lost. what size should i get since it gives me a range? would the 110 fit? any recommendations as to exactly which BB to get? preferably something not too expensive. thanks! by the way this isnt my first fixed gear, ive been riding almost two years.

prooftheory

I think IRO is closed anyway so you would have to wait to purchase the kit. The spindle length needs to match the crankset, rather than the frame. It is is the threading and width (68 English) that need to match to match between the bottom bracket and frame. So the if you use both the IRO bottom bracket and IRO Crankset it should give you the appropriate fit (42 mm chainline). But you should e-mail IRO if you have questions. They do answer but it may take a few days, at least when they are open.

KiwiD

exactly the answer i was looking for! and i know, they are closed till basically december but i dont plan on buying anything until around 2012 im just going ahead and doing all of my research

bbattle

Here is a bit more to read and consider: https://sheldonbrown.com/chainline.html