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  • Core 42 AR - Carbon All-Road Fork

    Core 42 AR - Carbon All-road fork

    Built for the road less predictable.

    The Core 42 AR Fork is designed for high-performance all-road riding, offering a stable, responsive front end with the clearance and features to take on mixed surfaces. Constructed from a T700/T800 monocoque carbon layup, it balances stiffness and weight for sharp handling and efficient power transfer, while keeping composed when the road gets rough.

    With clearance for tyres up to 42c, the Core 42 AR accommodates modern high-volume road setups and endurance builds, making it ideal for everything from fast pavement to light gravel and back again. Discreet fender mounts add year-round versatility without compromising the fork’s clean lines.

    Fully integrated cable routing, a tapered 1.5" steerer, and a 12mm thru axle support a seamless, modern cockpit, while flat mount disc compatibility with up to 160mm rotors ensures reliable braking across varied conditions.

    Finished in matte black and weighing just 460g, the Core 42 AR is a fork that expands what your road bike can do—without weighing it down.

    Features

    • Toray T700/T800 Monocoque carbon fork 
    • 12x100mm thru axle
    • Flat mount disc brakes
    • 1.125" - 1.5" fork steerer
    • Matte black finish
    • Concealed dropout
    • Full integrated routing
    • clearance for 42C tyres
    • Full fender mounts
    • 460g +/- 15g

    FEATURES

    monocoque

    Built from a single mould using T700/T800 carbon, the fork’s monocoque construction maximises strength while minimising weight. With no bonded junctions or added reinforcement, it offers a more direct ride feel and consistent structural integrity under load.

    Integrated

    The fork features a discreet cable entry point at the steerer, allowing brake hose to route internally through the headset for full integration. Unlike D-shaped steerers, the round profile maintains full structural integrity and headset compatibility - simplifying setup while preserving strength and stiffness where it matters most.

    AERO OPTIMISED

    The fork’s streamlined cross-section and smooth transitions are shaped to reduce drag at speed. Designed with modern tyre volumes in mind, it maintains a clean airflow around the front end contributing to overall aerodynamic efficiency without compromising stiffness or control.

    Flat Mount

    Optimised for modern road braking systems. The fork is designed around the flat mount standard with support for rotors up to 160mm. Delivering powerful, consistent braking at high-speed and under sustained loads.

    Tapered Steerer

    A 1.5" tapered steerer provides increased front-end stiffness and more precise handling under load. It improves responsiveness in corners and under load, while offering compatibility with fully integrated cockpit systems.

    CONCEALED DROPOUT

    The axle thread is fully enclosed inside the fork dropout. This design protects the interface from dirt, moisture, and wear - preserving alignment and ensuring smooth, secure wheel installation over time. It also enhances the fork’s clean, uninterrupted profile.

    Forks may be supplied with or without Bossi branding, depending on current availability. Cosmetic details may vary slightly between production batches, but all forks are identical in construction.

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    If you have questions about any of our products or would like to schedule a consultation to plan a custom buld, feel free to get in touch.