The Hellbender 70 bottom bracket utilizes bearings made of 440C stainless steel, providing exceptional ride quality and reliability, while striking a perfect balance between value and lasting performance. Marine-grade grease and robust bearing seals complete the package in terms of durability.Features an English (BSA) threaded frame interface with an inner diameter of 1.37"For use with 30mm spindlesAnodized blue finish adds durability and striking aesthetics Precision engineered in Fletcher, NC440C stainless steel bearings with a dual lip seal and marine grease, offer durability and corrosion resistance6061 T6 machined aluminum cups are lightweight and durableItem SpecificationsBB Shell Width (mm)68BB Shell Width (mm)73BB/Frame InterfaceEnglishBottom Bracket Shell I.D.1.37Defined ColorBlueSpindle Interface Typee*Thirteen P3 ConnectSpindle Interface TypeRaceFace Cinch 30mmWeight92 Cane Creek Hellbender 70 Bottom Bracket Bottom Brackets UPC: 840226029467