5Dev Titanium Bottom Bracket. Features: 29mm Spindle Diameter for SRAM DUB and 5Dev 29mm Spindles CNC machines sheels with Enduro XD-15 Ceramic-Hybrid, ABEC-5 Bottom Bracket Bearings with a Limited Lifetime Warranty Uses a Standard SRAM DUB BSA Bottom Bracket Tool Includes (1) connecting tube, (2) bearing washers, (2) 2.5mm internal spacers, (1) 1mm spacer, (1) 2mm spacer, (1) 3mm spacer, (1) anti seize puch Specs: Model: Titanium BB for Road, Gravel, XC Spindle Interface: SRAM DUB Shell: BSA Shell ID: 33.6mmx24tpi Width: 68/73mm Color: silver