OPEN's U.P.PER. CONCE.PT represents a refined approach to frameset design, distilling performance down to its essentials. This inaugural model prioritizes rider comfort while strategically incorporating aerodynamic refinements that enhance rather than compromise the riding experience. Available exclusively in M and L sizes, the complete chassis includes frame, fork, integrated one-piece bar/stem, and seatpost—engineered as a cohesive system. Choose between carbon black with protective clearcoat and OPEN branding, or Raw Ready-to-paint for custom finishing. We'll work with you to dial in the ideal bar/stem geometry for your proportions. Geometry: Size M L Top Tube 545 mm 564 mm Seat Tube 483 mm 504 mm Head Angle 71.5° 72.5° Seat Angle 73.5° 73.5° BB Drop 75 mm 73 mm Wheelbase 1024 mm 1028 mm Reach 380 mm 392 mm Stack 570 mm 595 mm