Enduro Ceramic Hybrid XD-15 Bottom Bracket BSA 30mm ModelNumber=C0285 Nuts have a matching o-ring

Nuts have a matching o-ring and a thread friction element to keep them in place after wheels are removed

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35 TPI 67TPI Tire Width Range 2

The overall Y-Shape freedom of movement and legroom are maximized while at the same time all bone structures are well supported

Enduro Ceramic Hybrid XD-15 Bottom Bracket BSA 30mm ModelNumber=C0285 Nuts have a matching o-ringFeature XD 15 15degree Angular Contact cartridge bearings pressed into precision machined aluminum cups that simply thread directly into the BB shell Feature deep groove raceways allowing for maximum sized Grade 3 Silicon Nitride ceramic balls for for increased contact area and improved performance and longevity Manufactured to the highest standards at the Enduro Bearings production facility in California, USA Combine corrosion proof, cryogenically