- Titanium arms and spindle are the ultimate in stiffness and durability - Designed to handle the rigorous demands of aggressive trail and Enduro riders - Compatible with 8-bolt SRAM direct mount chainring options (not included) with 8mm fixing bolt. Use 0mm offset for 55mm chainline and 3mm offset for 52mm (DC-42*) - Can be used on Gravel 47mm chainlines with appropriate spindle spacers - CNC machined 7075 T-6 aluminum bottom bracket preloader - Bottom bracket not included, use DC91* - 398g (170mm)