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Maintenance and replacement

How do I fit a wheel and hub cap?

The hub cap helps to centre the wheel on the brake drum. When tightening the wheel on the brake drum, you need to tighten crosswise or as in a star pattern.

What is the difference between a hub cap and a hub cover?

A hub cap and a hub cover are essentially the same thing — a protective cap that sits over the hub of the wheel. The hub cap does have an important job beyond protection, though: it helps centre the wheel on the brake drum when you fit it. Our hub caps come in different sizes and fit most trailer models.

What wheel size fits my trailer?

You will usually find the wheel size on the sidewall of the tyre or in the vehicle documents. Common sizes for trailer wheels are 13", 14" and 15". It is important to match both the rim diameter and the bolt pattern. We supply wheels in all standard trailer sizes.

How do I change a wheel on a trailer?

To change a wheel, first loosen the wheel bolts slightly while the wheel is still on the ground. Then raise the trailer with a jack, unscrew the bolts completely and take the wheel off. Fit the new wheel and tighten the bolts crosswise, in a star pattern, so the load is spread evenly.

What does the bolt pattern on a trailer wheel mean?

The bolt pattern gives the number of bolts the wheel has and the distance between them. For example, 4×100 means the wheel has 4 bolt holes with 100 mm between opposing holes. This has to match your trailer's hub for the wheel to fit. We have wheels for all the common bolt patterns.

How often should trailer tyres be replaced?

Trailer tyres should be replaced when the tread depth is less than 1.6 mm, or if the tyres show signs of ageing such as cracking or uneven wear. Even if the tyres look fine, we recommend replacing them after 5–6 years, because rubber ages. Check them regularly.

Can I fit any hub cap?

No. The hub cap has to suit your particular rim and hub size. There are different diameters and fixing systems — some hub caps push on, while others have clips or screws. We are happy to help you find the right hub cap for your trailer model.

Why is it important to tighten wheel bolts crosswise?

Tightening the wheel bolts crosswise, in a star pattern, makes sure the wheel is centred correctly and that the pressure is spread evenly across the rim. This stops the wheel sitting askew and reduces the risk of vibration while towing.