The eeWings All-Road titanium cranks and the included CNC aluminum bottom bracket preloader are the ultimate in stiffness and durability while weighing in at less than 400 grams In the same weight range as premium carbon cranks but 20% to 30% stiffer Butted 3/2.5 titanium arms with CNC 6/4 titanium spindle, crank bolt, and hirth joint Bottom Bracket Compatibility: 30mm spindle only. BSA68mm, PF86, BB30 (External Bearing Only), PF30 (External Bearing Only), 386EVO Compatible with SRAM 3-Bolt Direct Mount Chainring Interface Brushed titanium finish with laser etched graphics Cane Creek CNC machined 7075 T-6 aluminum preload adjustment 10 year limited warranty through Cane Creek 172.5mm 30mm Titanium Direct Mount 395gUPC/EAN/GTIN: 840226155197