Perfect for upgrading from 1-piece cranks to 3-piece cranks or for converting your unsealed 3-piece crank setup to a sealed one.
Designed specifically to work with 3-piece sealed-bearing cranks on frames utilizing an American bottom bracket shell.
Includes 2 precision sealed bearings, aluminum cups, high density plastic cone spacers, center tube spacer, sprocket adapter, plenty of adjustment washers, a 19mm 8-spline spindle and 2 spindle bolts.