Mission Sealed American BB
"The Mission Mid Bottom bracket is compatible with any style 3pc cranks. The Mid size fits any Mid compatible frame and is the sealed bearing, tube spacer, cone spacers, spindle spacers and Sprocket hat washer. The American B.B. to mid/19mm/22mm/24mm is a Aluminum cup that fits a American bottom bracket and 19mm, 22mm or 24mm spindled crank set. The 19mm, 22mm and 24mm version has a mid sized bearing pressed in the American outer sleeve. If you have an American bottom bracket and are trying to upgrade to a sealed 3pc. Crank, this is what you need to make it happen."
Outer diameter: American bb or mid
Inner bearing diameter available: 19mm, 22mm or (24mm only available in american) Outer bearing diameter: mid/19mm, mid/22mm, 24mm mid
Mid bb includes:2 mid bearings , tube spacer, cone spacers, spindle spacers, sprocket hat washer
American bb Includes: 2 mid bearings w/cups, tube spacer, cone spacers, spindle spacers, sprocket hat washer.