Quick Pro ER:ONE Frameset

The ER:ONE road frame represents a step forward in structural engineering. To achieve the combined goals of low weight, high stiffness, and reduced aerodynamic drag, every stage of development demanded precision. Each carbon ply is strategically oriented, resin ratios are optimized for strength-to-weight efficiency, and tube profiles are refined through repeated simulation and testing. From layup design to functional stress analysis, every parameter is verified and re-evaluated, ensuring a frame that balances efficiency, durability, and speed under real-world racing conditions. Ref Specification XS / 430 S / 460 M / 490 L / 520 XL / 550 XXL / 584 A Frame Size / Seat Tube Length (mm) 430 460 490 520 550 584 B Effective Top Tube Length (mm) 515 525 540 558 575 596 C Seat Tube Angle (°) 75.0 74.5 74.0 73.5 73.5 73.0 D Head Tube Angle (°) 70.0 71.0 72.0 73.0 73.0 73.5 E Head Tube Length (mm) 105 118 132 148 165 185 F Chainstay Length (mm) 408 408 408 408 408 408 G Wheelbase (mm) 985 985 987 991 1008 1019 H Fork Offset / Rake (mm) 45 45 45 45 45 45 I Bottom Bracket Drop (mm) 70 70 70 70 70 70 J Fork Length (mm) 373 373 373 373 373 373 K Standover Height (mm) 746 762 779 797 813 846 — Stack-to-Reach Ratio (STR) 1.32 1.36 1.39 1.40 1.40 1.42 — Reach (mm) 380 381 386 393 406 415 — Stack (mm) 505 521 538 556 572 593