Fulcrum Racing Zero C19 2-Way Fit Disc Brake Wheelset

The Fulcrum Racing Zero C19 2-Way Fit Disc Brake Wheelset sits at the top of Fulcrum's aluminium road wheel lineup — a position earned not through marketing spend but through decades of refining what a hand-built alloy rim can do at the sharp end of road cycling. This is not a wheel trying to imitate carbon. It operates on different principles: tactile feedback through the rim, predictable behaviour across varied road surfaces, and braking confidence that disc rotors and a quality alloy rim deliver as a coherent system.

The C19 designation refers to the 19mm internal rim width — a modern profile that broadens the tyre contact patch and allows lower pressures without unsettling the handling. Whether you're running 28mm tyres on a fast group ride or stretching to 32mm for longer endurance days, the rim geometry is designed to let the tyre sit and perform as intended. Tubeless compatibility through Fulcrum's 2-Way Fit system means you can commit to a full tubeless setup with sealant — gaining reduced rolling resistance and improved puncture resistance — or retain a standard tube if the situation calls for it. That flexibility is practical rather than cosmetic, and it means the Racing Zero C19 adapts to how you actually ride rather than demanding you ride a specific way.

Disc-specific hub geometry and spoke lacing allow for a more symmetrical build across both wheels — a meaningful departure from the compromises that rim brake dishing requirements once imposed on traditional wheelsets. With braking forces routed through the rotor and hub rather than the rim, spoke tension can be distributed more evenly, producing a wheelset designed to be laterally stiff and structurally balanced. On a hard criterium acceleration or a sustained climb out of the saddle, that translates into a wheel that responds cleanly and stays composed under load. The Racing Zero C19 is a wheelset built around clarity — clarity of feel, clarity of response, and confidence that what you put in is what comes out.

Fulcrum Racing Zero C19 2-Way Specs at a Glance

• Rim Material: Aluminium alloy
• Internal Rim Width: 19mm (C19 profile)
• Tubeless Compatibility: 2-Way Fit (tubeless-ready and tube-compatible)
• Brake Type: Disc brake specific
• Axle Standard: Thru-axle
• Available Drivetrain Options: Campagnolo, HG11 (Shimano / SRAM 11s), XDR Driver
• Wheel Build: Hand-built
• Rim Profile: Clincher / tubeless road profile
• Hub Construction: Disc-specific geometry for improved spoke symmetry
• Colour: Black

Design Benefits

1. Symmetrical Disc Hub Architecture: Disc brakes remove the rim from the braking equation entirely, which allows Fulcrum to engineer the hub flanges and spoke lacing for even tension distribution rather than compensating for rim brake dishing. The result is a structurally balanced wheel that is designed to be stiffer laterally and more durable over time — benefits you feel most clearly during hard accelerations and sustained power efforts.
2. 19mm Internal Width for Modern Tyre Fitment: The C19 rim profile is built around the reality of how road cyclists are riding today — wider tyres, lower pressures, and a broader range of terrain. A 19mm internal width supports tyres from 25mm through to 32mm, allowing the tyre to form the correct aerodynamic and contact patch profile rather than being pinched by a narrower rim. Lower pressures become usable without squirm, and grip through corners improves accordingly.
3. 2-Way Fit Tubeless Compatibility: Fulcrum's 2-Way Fit system means the rim bed and bead seat are engineered to seal with a tubeless tyre and sealant, without requiring a tube. The practical benefit is a setup that resists small punctures self-sealing on the road — something that matters on long solo rides or during events. Running a tube remains fully supported, so there is no penalty for situations where a tubeless repair isn't feasible.
4. Hand-Built Construction: Each wheel in the Racing Zero C19 range is hand-built, which means spoke tension is verified and set individually rather than by machine alone. This level of attention to build quality affects how consistently the wheel holds its shape under load and how long it stays true between services — a difference that reveals itself gradually over thousands of kilometres rather than immediately out of the box.
5. Drivetrain Flexibility Across Three Standards: Available with Campagnolo, HG11-compatible, and XDR driver bodies, the Racing Zero C19 is designed to integrate cleanly with the drivetrain you're already running — whether that's a Campagnolo groupset, a Shimano or SRAM 11-speed setup, or a SRAM 12-speed Eagle or AXS drivetrain. No compatibility compromises, no adaptor workarounds.

Final Take

The Fulcrum Racing Zero C19 is built for road cyclists who want the top of the aluminium category — riders who value the feel and reliability of a quality alloy rim, the structural advantages of disc-specific hub design, and the versatility of a genuinely tubeless-ready system. It suits everything from fast training rides and long endurance days to criterium racing and sportives. If you've decided alloy is where you want to be, this is where that decision leads.