Cane Creek Hellbender 70 Bottom Bracket - PF30 for 24mm SpindleCane Creek Hellbender 70 Bottom Bracket PF30 for 24mm Spindle. Offering the best in both value and performance the Cane Creek Hellbender 70 Bottom Bracket will be an impactful and lasting upgrade to any bike. It features 440C stainless steel bearings to provide exceptional ride quality and reliability. 440C stainless steel bearings with a dual lip seal and marine grease offer durability and corrosion resistance 6061 T6 machined aluminum cups are