Tow Bar Requirements and Installation in Hamilton | Grimmer Motors Hamilton
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Tow Bar Requirements and Installation in Hamilton

About tow bars:


When comes to getting a new tow bar there are a few things to consider. When getting a tow bar fitted, you should think about what you want to carry/pull and whether your car will be able to handle it while also meeting the government requirements. Once your tow bar is fitted, there should be a place card with a number up to three digits printed on it. Each digit of this number represents a weight rating for the trailer. Please note, these numbers are set by the manufacturer of you car and do not reflect the tow bar itself. These numbers represent:

Un-braked Weight: Un-braked weight is the maximum weight your car can support when pulling a trailer with no brakes.

Braked Weight: Braked weight is the maximum weight your car can support when pulling a trailer with brakes.

Tongue Weight: Tongue weight is the downward weight being applied to the tow bar. This is important if you are carrying bikes racks etc as these apply large amounts of downward weight on your tow bar.


Does your tow bar need replacement?  

If your tow bar has any kind of damage, it could potentially break when carrying a load. If it does happen to break and let a trailer loose for example, it could endanger other drivers. For this reason, there are a number of small or large things that may cause you to fail your warrant of fitness (WOF). These things include:

Tow bar mounting:

  • Tow bar not securely attached
  • Missing Nuts or Bolts
  • Corrosion Damaged
  • Cracks or visible damage

Tow bar tow ball:

  • Cracked tow ball
  • Worn tow ball
  • Corrosion
  • Incorrect sized towball

The official tow bar requirements and specifications for New Zealand can be found here: Towbar NZTA



 Tow Bar installation and repairs in Hamilton:

If you need a new tow bar, or your old one needs replacing, the friendly, reliable team at Grimmer Motors can help to organise this for you.

For all your tow-bar repairs and replacements in Hamilton, contact Grimmer Motors today!

Please Note – we don’t generally stock or supply just “parts only” for this service. We are a general automotive repair workshop. If you are able to bring your vehicle to us, we can diagnose the problem, find and fit the necessary parts, or organise the appropriate service for you.


Contact Us

Phone: 07 855 2037

Address: 998 Heaphy Terrace, Fairfield, Hamilton

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