Trojan 225mm Blank Hub No Disc 5x4.25 Bolt Pattern

Designed for serious wheel builders and restoration pros, the Trojan 225mm Blank Hub No Disc is a precision blank hub engineered for freedom and customization. With a 5x4.25 bolt pattern and a 225mm hub diameter, this component is purpose-built for projects where the rotor interface is removed or redesigned, giving you a clean slate to craft perfect fitment and unique wheel setups.

Key specifications at a glance:

• Bolt pattern: 5 on a 4.25-inch circle (5x4.25), enabling compatibility with a wide range of custom wheels and Trojan-compatible systems.
• Hub diameter: 225mm, providing a stable, centered foundation for bespoke wheel centers and rotor arrangements where disc hardware is not part of the hub itself.
• Disc interface: No disc mounted on the hub (disc-free design) for restoration work and bespoke builds that require a tailored rotor mounting solution.
• Part number: ONT600105, a traceable identifier for procurement, inventory, and service compatibility.
• Brand: Trojan, renowned for wheel-system components that meet professional standards in fabrication, restoration, and custom builds.

Why this blank hub stands out

Unlike standard disc-equipped hubs, the Trojan blank hub focuses on precision, repeatability, and adaptability. It’s a trusted starting point for projects where you want to control every facet of the mounting surface, from caliper spacing to rotor thickness, without being constrained by pre-installed discs. Built for professional use, it supports accurate drilling, turning, and finishing to your exact specifications, reducing guesswork during fabrication.

Who should consider this hub

• Professional wheel builders and fabrication shops undertaking custom wheel centers and disc-free restorations.
• Collectors and restorers working on classic or niche vehicles that require a tailored hub interface.
• Engineers and race teams designing bespoke wheel assemblies where precise concentricity and repeatability are critical.

Use cases and practical applications

• Disc-free restorations: prepare a clean hub foundation to accommodate a bespoke rotor interface or non-standard mounting scheme.
• Custom wheel centers: design your own rotor mounting surface and caliper spacing to achieve exact fitment and aesthetics.
• Fabrication projects: use the 225mm blank hub as a reliable base for custom wheel systems, ensuring stable alignment during machining and assembly.
• Professional builds: leverage the repeatable geometry of Trojan hubs to standardize workflows across multiple vehicles or projects.

Benefits in real-world scenarios

• Flexibility: a true blank canvas that unlocks creative and technical freedom in wheel design and rotor integration.
• Precision: engineered to maintain concentricity and alignment during fabrication, reducing runout and calibration time later.
• Traceability: clear part numbering (ONT600105) simplifies ordering, service, and future replacements in workshop environments.
• Durability for professional use: built to withstand repeated handling and machining in restoration and race-focused builds.

How this hub compares to the standard options

Where disc-equipped hubs serve ready-made configurations, the Trojan 225mm Blank Hub emphasizes adaptability and control. It lets you determine rotor attachment geometry, caliper spacing, and mounting surface finish, which can shorten lead times in custom builds and improve final wheel alignment compared with off-the-shelf discs that lock you into predefined interfaces.

Guidance for installation and care

• Inspect the blank hub for any surface imperfections before machining. Surface quality affects finish, nut seating, and rotor mounting accuracy.
• During installation, use proper thread lubrication and torque specs appropriate for your fasteners and vehicle application to preserve concentricity.
• Store in a clean, dry environment to prevent corrosion on uncoated surfaces prior to finishing work.
• Coordinate with your fabricator to define the final rotor interface, bolt circle, and caliper spacing to ensure a precise, reliable fitment.

With the Trojan 225mm Blank Hub No Disc, you’re not just buying a part—you’re investing in a robust, professional-grade foundation for bespoke wheel systems. It’s ideal for disc-free restorations and custom builds where precision, adaptability, and brand reliability matter most.