Profile uses two different bearings in their cassette hub drivers:

A. 6802 (15MM ID x24MM OD x5MM W)

B. 6902 (15MM ID x 28MM OD x 7MM W)

Some drivers use all the same type of bearings and others use a combination. Following is aguideof what bearings are in different cassette drivers.

-Profile Racing Mini, Totem or Madera cassette hub drivers use four6802 bearings.

-All Profile Racing Elitecassette hub drivers use two6802 bearings & one 6902 bearing.