Trojan Hub Kit 2000kg Per Axle Bolt On Rotor Upgrade For Duratorque And NZ Trailer Axles

Hub Kit 6x51/2x1/2 Bolt-on Rotor 2000kg is a purpose-built, non-braked hub kit designed to upgrade Duratorque and beam axles, with broad compatibility for NZ-manufactured trailer axles. Built for strength and reliability, it’s rated for a 2000 kg GVM per axle when paired, making it a solid choice for heavy-duty trailer applications.

Why this hub kit stands out:

• Clear upgrade path to brakes — these hubs are designed to accept bolt-on brake components later, giving you a simple, cost-effective way to add braking when you’re ready. Upgrade options include rotor and caliper kits (see compatible parts below) without changing the hub itself.
• Versatile stud patterns — choose from multiple bolt patterns to fit a wide range of rims. Patterns covered include:
• 5 studs, PCD 4 1/2 inch (67.183 mm) with 1/2 inch studs
• 5 studs, PCD 120 mm with 7/16 inch studs
• 6 studs, PCD 5 1/2 inch with 1/2 inch studs (82.118 mm)
• Wide axle compatibility — designed to fit Duratorque and beam axles and should suit most NZ-manufactured trailer axles, making it a pragmatic choice for builders and DIY enthusiasts alike.
• Brake-ready disk compatibility — the hub kit is supplied without a disc, but is compatible with bolt-on disc rotors when you’re ready to add braking in a future timeframe.
• Heavy-duty bearings — assembled with robust bearings to handle demanding loads and vibration common in trailer operation.
• Solid dimensional specifics — the current disc-braked version features a 50 mm outer bore, 65 mm inner bore, 17 mm flange thickness, 220 mm flange diameter, and 90 mm overall width. For the spigot-type 2000 kg configuration, the outer bore remains 50 mm with a 65 mm inner bore, but the flange is 13 mm thick, 190 mm diameter, and 110 mm wide, reflecting specific mounting needs.
• Post-purchase support — spare parts and upgrade components are available, with reliable shipping from suppliers typically within 4–7 days.

Technical specifications at a glance

• GVM rating: 2000 kg per axle (based on a pair of hubs)
• Hub type: Disc-braked version (current model) with outer bore 50 mm, inner bore 65 mm, flange thickness 17 mm, flange diameter 220 mm, overall width 90 mm
• Spigot-type variant: outer bore 50 mm, inner bore 65 mm, flange thickness 13 mm, flange diameter 190 mm, overall width 110 mm
• 5- and 6-stud configurations supported (see patterns above)
• Bolt-on disc compatibility: yes (disc sold separately)

Upgrade path and compatible brake components

For owners planning to add braking later, this hub kit pairs with a range of bolt-on brake components. Approved upgrade options include:

• TPT3112 Cast iron rotor kit
• TPT3113 Stainless steel rotor kit
• TPT1098 Cast iron caliper kit
• TPT1298 Stainless steel caliper kit

These components enable a seamless conversion from a non-braked hub to a fully braked system when your trailer load profile or regulatory requirements demand it.

Who should consider this hub kit?

Ideal for trailer builders, fleet operators, and DIY enthusiasts who need a dependable, high-capacity hub solution that leaves room to add brakes later. It’s particularly well-suited for Duratorque and beam axle setups, but its broad compatibility with NZ-manufactured axles makes it a practical choice for many trailers operating across varied conditions.

Practical tips for selection and installation

• Measure your existing stud pattern and wheel bore to confirm the correct 5- or 6-stud configuration and PCD.
• If you anticipate adding brakes later, plan your rotor and caliper upgrade path now and verify compatibility with your chosen rotor/calliper kits (listed above).
• During installation, ensure proper bearing seating and torque specifications per the axle manufacturer’s guidelines to maximize lifespan and performance.
• Check the availability of spare parts and compatible components in your region to minimize downtime when upgrading or servicing.

Ships from suppliers within 4–7 days, helping you keep your trailer project on schedule. With the Hub Kit 6x51/2x1/2 Bolt-on Rotor 2000kg, you get a robust, upgrade-friendly hub solution built for demanding trailer work and long-term reliability.