Replacement bearings for PF30/BB30 bottom brackets : dimensions: 42mm x 30mm x 7mm.
Material: Stainless Steel or Hybrid stainless steel with ceramic performance bearings.
Don't settle for chrome steel bearings, rusted in bearings are no joke!
Rubber sealed both sides and lubricated, perfect for all year riding.

Sale is for one set which contains two bearings; one for each side of the crank.
Fast and free delivery, UK dispatch.