Titanium arms, spindle and crank bolt offer the ultimate in stiffness and durability. In the same weight range as premium carbon cranks but 20-30% stiffer Compatible with direct mount SRAM XSync road compatible chainring options Using 3bolt 6mm offset ring= 44mm chainline, 3mm offset ring= 47mm chainline Optional DM 3bolt 110BCD spider for 1x or 2x drivetrains, use DC-9127 or DC-9129 CNC machined 7075 T6 aluminum bottom bracket preloader Bottom bracket not included, use DC91* Manufacturer 10year limited warranty 400g (170mm)