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. 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 compaction The race material is an advanced stainless alloy that is nitrogen infused and will not rust or corrode Dual stage anodize black and gold machined aluminum bottom bracket cups Kluber NBU52 grease runs better and smoother with time, and is highly resistant to being washed out
