If you need to service your Ritchey WCS V6 or V7 XC mountain bike pedals, this bearing kit includes all the replaceable parts you need. The high quality pedal uses three bearing systems per side: a bushing, a needle bearing assembly, and a sealed cartridge bearing, plus a new rubber seal. Simply remove your pedal body from the axle, note the placement of each bearing system, remove, clean, grease and replace. Then install the body, fasten and done.