Cane Creek Hellbender 70 Bottom Bracket Bearing Kit - Compatible 30mm Spindle Includes 2 Cartridge BearingsCane Creek Hellbender 70 Bottom Bracket Bearing Kit Compatible with 30mm Spindle Includes (2) Cartridge Bearings. Cane Creek replacement bearing kits for Hellbender 70 series bottom brackets feature excellent durability and corrosion resistances for exceptional ride qualilty440C stainless steel bearings for long service life Robust dual lip seals provide excellent contamination protection Packed with marine grade grease to keep the bearings rolling