The Mission American BB cups allow you to use any sealed Mid BB (19, 22 or 24mm) in any American bottom bracket frame. If you have a frame with an American BB shell, it can be difficult upgrading your crankset or even finding a replacement BB kit. These Mission American cups should help solve your issue. Sold in pairs.
This product was added to our catalog on December 18, 2019
Friday, Dec 3 2021 (6 months ago)
Mission American BB Cups (Black)
Excellent adapter to have Mid BB fit in an "American" style frame. These installed nicely in an American size (~51mm internal diameter) to accept 42mm Mid BMX Bottom Bracket bearings. I used these to upgrade the BB on a Framed brand BMX. These installed nicely with a bearing press, and so far are an excellent upgrade to the original equipment stamped-steel bearing cups and the difficult to maintain crown bearing setup that came on the bike. Thank you, Mission and Dan's Comp!