Hub and Stub Kits 1500kg Disc/B 5x4 1/2x1/2 are built for dependable, heavy-duty braking performance on NZ trailers. Each kit is engineered with a clear focus on real-world use — delivering consistent stopping power, durability, and straightforward compatibility across common trailer configurations.

Designed to fit Trojan Duratorque and beam axles, these braked hub kits also suit a wide range of NZ-manufactured trailer axles. The 1500KG GVM rating is based on a single axle with a pair of hubs, giving you a reliable load-capacity benchmark for mid-range trailer applications. The 5x4 1/2 bolt pattern (5 studs, 4.5" PCD, 1/2" stud) is the core configuration, aligning with many commonly stocked rims and tyres.

What makes these hub and stub kits stand out

• Versatile braking options: Choose between a full cast disc or a bolt-on disc in cast iron or stainless steel, offering a balance of cost, longevity, and corrosion resistance for different operating environments.
• Solid stub axle integration: Each kit includes a pair of 38mm round stub axles with a built-in caliper mount, simplifying installation and ensuring caliper alignment is optimized for consistent braking performance.
• Caliper compatibility: Brakes calipers are sold separately, giving you flexibility to source the exact brake hardware you prefer while keeping core hub and stub components streamlined.
• Range of rotor/stud configurations: Available in multiple rotor types and stud patterns to fit a broad spectrum of wheel assemblies. Options include integral discs with both 4- and 5-stud patterns and bolt-on discs in a variety of PCDs and stud widths (ranging from 7/16" to 1/2").
• NZ-focused versatility: While optimized for Trojan Duratorque and beam axles, these kits are designed to fit most NZ-manufactured trailer axles, supporting a wide range of trailer builds and retrofit projects.

Available configurations (highlights)

• Integral discs in 4-stud and 5-stud patterns with 7/16" or 1/2" stud widths and PCDs around 108.6mm, 114.3mm, and related standards.
• Cast iron bolt-on discs compatible with 5-stud patterns and 4.25" to 4.5" PCD, featuring 7/16" or 1/2" stud widths.
• Stainless steel bolt-on discs offered in 5-stud patterns with 4.5" PCD or 120mm variants, available with 1/2" or 7/16" studs.

What’s included and how it helps you

• Included: A complete hub and stub kit assembly for one axle, with two hubs designed for disc braking and a matched pair of 38mm stub axles. The kit is content-rich enough to support reliable braking performance when paired with compatible calipers (sold separately).
• Lightweight, precise packaging: Pack weight around 20kg, reflecting a comprehensive kit designed for straightforward handling and installation.
• Shipping and lead time: Products are shipped from suppliers and typically dispatch within 4–7 days, helping you plan installations with confidence.

Ideal use cases and practical tips

These hub and stub kits are well-suited for trailers expected to perform reliably under moderate loads, including utility trailers, caravans, and light-to-midweight boat trailers commonly used in NZ. If you’re upgrading from drum brakes or retrofitting to a disc-braked system, these kits provide a robust foundation with multiple configuration options to match your existing wheel and brake components.

Practical tips to ensure optimal performance:

• Match the rotor configuration to your existing caliper setup and wheel studs to avoid compatibility issues — consult the listed rotor/stud options for a precise fit.
• When ordering, confirm your preferred stud pattern and disc type (integral vs bolt-on, cast iron vs stainless) to align with your climate exposure and maintenance expectations.
• Pair with appropriate calipers (sold separately) and verify mounting clearances to ensure full rotor engagement and neglect-free operation on installation.
• For NZ trailer builds that travel salt or coastal environments, consider stainless steel bolt-on discs to maximize corrosion resistance and longevity.

With its 1500kg GVM per axle rating and flexible disc options, the Hub and Stub Kits 1500kg Disc/B 5x4 1/2x1/2 offers a reliable, adaptable braking solution that’s designed to work with your existing Duratorque or beam axle setup — and to fit a broad range of NZ trailer axles with confidence.