21x12x8 mm
Full Complement (FC) bearing designed for use in the short rotations & high loads of suspension pivots.
Where a normal caged bearing contains bearings with space between them and a cage to hold them apart, a FC bearing is packed completely full of balls. This gives greater contact area and makes these bearings last longer than standard caged bearings in suspension pivots.
FC bearings are not designed for use in wheels or bottom brackets where there is continuous rotation.