Cane Creek Hellbender 70 30th Anniversary Bottom Bracket - English, For 30mm Spindles, Blue 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. 440C stainless steel bearings with a dual lip seal and marine grease, offer durability and corrosion resistance 6061 T6 machined aluminum cups are lightweight and durable Features an English (BSA) threaded frame interface with an inner diameter of 1.37" For use with 30mm spindles Anodized blue finish adds durability and striking aesthetics Precision engineered in Fletcher, NC Specs Spindle Interface Type: RaceFace Cinch 30mm , e*Thirteen P3 Connect BB Shell Width (mm): 68 , 73 Bottom Bracket Shell I.D.: 1.37 Defined Color: Blue BB/Frame Interface: English Weight: 92