The Hellbender 70 bottom bracket utilizes a bearing made of 440C stainless steel, providing exceptional ride quality and reliability. The stainless steel bearing in the Hellbender 70 strikes a perfect balance between value and lasting performance. Providing excellent durability and corrosion resistance, the Hellbender 70 Bottom Bracket will be an impactful and lasting upgrade to any bike. All Cane Creek Bottom Brackets are precision engineered in Fletcher, NC. They are premium bottom brackets designed to provide riders with the same quality, performance and durability that they have come to expect from Cane Creek.