1-piece forged 7075 aluminum arm/spider design for optimized weight and strength
Optimized Q-factor for 68/73mm shells with a 51mm chainline and a drive-side integrated 24mm-steel (GXP) or 30mm-aluminum (BB30) bottom bracket spindle for maximized stiffness
X-Glide chainring combination engineered with an 11t common-denominator enabling perfectly timed/placed shift-points