5DEV Titanium Bottom Bracket for Road, Gravel, and XC. 29mm Spindle Diameter for SRAM DUB and 5Dev 29mm SpindlesBSA English Thread 68/73mmCNC machines sheels with Enduro XD-15 Ceramic-Hybrid, ABEC-5 Bottom Bracket Bearings with a Limited Lifetime WarrantyUses a Standard SRAM DUB BSA Bottom Bracket ToolIncludes (1) connecting tube, (2) bearing washers, (2) 2.5mm internal spacers, (1) 1mm spacer, (1) 2mm spacer, (1) 3mm spacer, (1) anti seize pouch TECH SPECS Model Titanium BB for Road, Gravel, XC Spindle Interface SRAM DUB Shell BSA Shell ID 33.6mmx24tpi Width 68/73mm Color silver