The eeWings and the included CNC aluminum bottom bracket preloader are the ultimate in stiffness and durability while only weighing a mere 400 grams. 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. BSA73mm PF92 PF89.5 BB30 (External Bearing Only) PF30 (External Bearing Only) 392EVO. Compatible with SRAM 3-Bolt Direct Mount Chainring Interface. Brushed Titanium finish with laser etched graphics. 10 year limited warranty through Cane Creek

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