Compatible groupset: Shimano di2 / Sram E-Tap / Sram 1By (cable or electric) / FSA electric It will accept most stems and bars on the market. Oval front chainrings up to 56 all the way down to compact size due to our twin position front derailleur hanger. Truncated Airfoil Tubes: Stiffer, lighter aero tubes. Integrated Tool Box and Bento Box Lowered BB: For improved high-speed stability and better overall aerodynamics BB EVO386. Brakes: 12 mm thru axle Flat mount brakes Hydraulic or cable. Max tire clearance: 28 tires with room to spare. Reversible Seat Post: For a wide range of saddle adjustability. Double seat clamp: Wedge and collar mean it never slips and makes it easy to remove your seat post without losing its position. Removable front derailleur hanger: Hi and Lo position. Head Set: 1-1/8” – 1-1/4” Frame: 100% 40T high-modulus carbon frame 2,230g Frame (M size) 1,450g Fork