The Hellbender 110 Bottom Bracket provides an incredible mix of performance and longevity through the inclusion of Enduro XD-15 ceramic bearings. These bearings feature nitrogen infused stainless steel races that will not rust or corrode paired with Silicon Nitride ceramic balls.Enduro XD-15 ceramic ball bearings are made from pure silicone nitride material with extreme high density and uniform compactionThe race material is an advanced stainless alloy that is nitrogen infused and will not rust or corrodeDual stage anodize black and gold machined aluminum bottom bracket cupsKluber NBU52 grease runs better and smoother with time, and is highly resistant to being washed outDesigned for use with 30mm spindlesItem SpecificationsBB Shell Width (mm)68BB Shell Width (mm)73BB/Frame InterfaceEnglishBottom Bracket Shell I.D.1.37Defined ColorBlackSpindle Interface Typee*Thirteen P3 ConnectSpindle Interface TypeRaceFace/Easton CINCHSpindle Interface TypeRotor 3D+Spindle Interface TypeZipp VumaWeight80 Cane Creek Hellbender 110 Bottom Bracket Bottom Brackets UPC: 840226086903