The SRAM Eagle crankset is the lightest, strongest and stiffest crankset they offer and the most technologically advanced that SRAM has ever created. Using a high tier design and construction processes, SRAM has made a lightweight carbon crankset that can tackle any terrain, in any location and at speeds a mountain biker can only imagine.   Carbon Tuned Construction: The Eagle crankset was born from a completely re-engineered construction using SRAM's Carbon Tuned technology, making it light and exceptionally strong. It has been designed specifically to handle aggressive terrain, rough lines through rock gardens and big drop-ins. To top it off, the advanced, modern carbon construction makes this arguably the most stylish crankset on the market at present.   Technologies: Carbon Tuned: Strength and stiffness where you need it, lightweight like you want it. Proprietary SRAM carbon lay-up design increases thickness and stiffness at critical stress areas. Tapered, terraced, carbon architecture ensures the greatest weight savings without compromising strength.   BB30: Aside from the serious weight savings, this bottom bracket means narrow Q-factor, more ankle clearance, greater bearing durability and stronger crank construction.   X-Sync 2: X-Sync 2 Eagle is the next evolution of SRAM X-Sync technology. The aggressive teeth design provides better chain retention for a smoother, more efficient pedal feel. With a focus on long wear-life, the X-Sync Eagle design reduces friction and the accumulation of mud, grit and grime. SRAM XX1 Eagle MTB Chainset - BB30 Featuresd Arm Material: Carbon composite Chainring Material: Forged and CNC machined Aluminium Chainring Engagement: Direct mount Bottom Bracket Compatibility: BB30Spindle Diameter: 30m Recommended Chain: Eagle chain Speed: 12-speed Chainline: 49mm Weight: 465g (32T) Product Data No. Of Chainrings: Double Chainset type: SingleSpeed: 12 Speed MTB: Ye