Wheels Manufacturing PressFit BBRight Thread-Together Bottom Bracket - DUB Spindle - ABEC-3 BearingMachined aluminum shell threads together for precise bearing alignment and frame fit, reducing bottom bracket creaking and premature bearing wear. Replaceable Enduro bearings Made in the USA Designed to fit 29mm spindles on SRAM DUB cranks on frames using the BBRight bottom bracket standard Machined aluminum cups keep the bottom bracket stable in the frame, increasing bearing life Reduced creaking and smoother operation Includes (2) silicone dust