MID TO AMERICAN BB CUPS

FEATURES: Our 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, Buy a MID BB like our Savage or Revolver, press the bearings into the cups and the cups into your frame.If you are upgrading from a loose ball system you will also need this 8-Spline spindle.   MATERIAL: 6061 T-6 Aluminum AlloyBEARING SIZE: MIDBB SHELL SIZE: AmericanCOLOR: Anodized BlackWEIGHT: 2.0 oz. (56.7g.)