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Trailer Wheels & Tyres NZ — Sizing Guide (2026)
Trailer Wheels & Tyres NZ — Sizing Guide (2026)
Choosing the right trailer wheels and tyres is critical for safe towing. Wrong sizes affect handling, braking, and can be illegal. Here's your complete guide.
Trailer Tyre Sizes Explained
Trailer tyre sizes look like this: 185/70R14
| Number | Meaning |
|---|---|
| 185 | Tyre width in mm |
| 70 | Aspect ratio (sidewall height as % of width) |
| R | Radial construction |
| 14 | Rim diameter in inches |
Common NZ Trailer Tyre Sizes
| Size | Typical Use |
|---|---|
| 4.80/4.00-8 | Small trailers, jet ski trailers |
| 5.30-12 | Light boat trailers, box trailers |
| 155R13C | Medium trailers, horse floats |
| 185/70R14 | Medium-large boat trailers |
| 195/60R14C | Heavy-duty trailers |
| 205/75R15 | Large boat trailers, car transporters |
Bolt Patterns for Trailer Wheels
| Pattern | Common On |
|---|---|
| 4×100 | Small trailers, Japanese car hubs |
| 5×114.3 | Medium trailers, many car hubs |
| 6×139.7 | Heavy-duty trailers, 4x4 hubs |
Trojan Trailer Wheels & Tyres
We stock the full Trojan range — NZ's most trusted trailer parts brand:
- Complete Wheel Assemblies — Rim + tyre, ready to bolt on
- Trojan Trailer Tyres — 12" to 15" heavy-duty options
Trailer Hub & Bearing Kits
- Non-Braked Hub Kits — For light trailers
- Disc Braked Hub Kits — For braked trailers
- Bearing & Seal Kits — Replacement bearings
Maintenance Tips
- Check tyre pressure before every tow — Trailer tyres lose pressure sitting idle
- Inspect for cracks — Trailer tyres age from UV even with low mileage. Replace every 5-7 years regardless
- Grease bearings — Repack wheel bearings annually or after submersion (boat trailers!)
- Carry a spare — Always have a spare wheel and jack for your trailer
Shop Trailer Wheels at Action Outdoors
Browse: Mags & Tyres. Call 09 820 8023.
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