2025 Bianchi E-Arcadex Ekar Road Bike SPECIFICATION Fork Full Carbon 1.5" flat mount, disc brake, thru axle 12x100mm Bottom Bracket Included in the Drive unit Headset FSA SMR HS with 1-1/8” custom top cone Bianchi, H2475 Internal Headset, Integrated Alloy custom top cup 1.1/8"", 1.5"", 36°/45° ACB ..