Westfield Harnesses Buying Guide

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Westfields require harnesses specifically designed for the unique needs of the car.

The cockpits are very compact, and there is limited space for excess webbing. Adjustment needs to be both accessible and simple to operate.

For Westfields with racing seats, there are even more precise requirements.

So, where should you begin?

Will your Westfield be used primarily on the road, for track days, or in FIA events?

Road Use

Road-approved Westfield harnesses can come in 3 point, 4 point or 6 point configurations.

A typical starting point is a 3 or 4 point harness that is road-approved. This type will feature a standard buckle, similar to what you’d find in most cars, and 2 inch webbing. These harnesses typically have fixed-length upper shoulder straps and lap straps that adjust by pulling down.

For more information about shoulder straps and whether you need pull-up or pull-down adjusters, see the details further down this guide.

Examples of these harnesses include:

For those seeking something with a quicker release mechanism, a 4 or 6 point harness with FIA approval is a great option. This type of harness is also road-approved, with the exception of FIA-approved models that are designed for HANS devices only.

Examples of these include:

Westfield Road Harnesses

Track Day Use

Any of the TRS or Willans harnesses we list are suitable for track days. If you plan to use your Westfield on the road as well, it’s advisable to select a road-approved or road and FIA-approved version (as mentioned above).

We also carry harnesses that are manufactured to the same high standards but may not yet be FIA-certified due to the cost and time involved in the FIA approval process. These harnesses are perfect for track days but are not FIA or road-approved yet.

Examples of these include:

FIA Approved

There are two types of FIA harnesses:

  1. FIA-approved harnesses without a HANS device
  2. FIA-approved harnesses exclusively with a HANS device

FIA Use Without a HANS Device

As mentioned in the road section, FIA-approved harnesses are road-legal unless they are specifically "HANS-only" models. These Westfield harnesses are perfect for FIA use without a HANS device and road use:

FIA Use Exclusively With a HANS Device

These harnesses are designed specifically for use with HANS (Head and Neck Support) devices, which are often required in competitive racing. They feature 2 inch (or 3 inch reducing to 2 inch) shoulder straps. Examples include:

The TRS Westfield International 6 Point FIA Quick Adjuster HANS harness listed above features the ultimate in quick adjuster technology, making it perfect for use with FIA-approved racing seats. The lap adjusters are integrated with the quick-release buckle and include grab loops, ensuring easy access and maximum adjustability. Please note that while some Westfield owners use these harnesses on the road, they are officially approved for track day use (with or without a HANS device) and FIA use (only with a HANS device).

FIA Harnesses

Shoulder Straps

The upper shoulder straps on Westfield harnesses are typically 45cm from the adjuster to the fixing point.

Standard harnesses come with sewn-on shoulder strap fixings as standard, which helps avoid excess webbing in the cockpit. However, if you prefer, you can opt for adjustable upper shoulder straps with removable fixing points (instead of sewn-on). This allows for greater flexibility, though it will involve some extra setup.

The adjustment range of the lower shoulder strap is between 10cm and 40cm.

Fixing Points

Our Westfield 3, 4 and 6 point harnesses all come suitable fixing points for your Westfield, including snap hook fixings on the shoulder straps and bolt in fixings on the lap and crutch straps.

Please see the individual product listings for details of exactly what fixings are included with each harness, or contact us for more information.

Adjusters

As standard our Westfield harnesses use steel anti-creep adjusters. Also available are premium aluminium alloy adjusters, which in addition to being lightweight, offer a smoother and faster adjustment. You can upgrade to aluminium adjusters on the shoulder straps only, or on both the shoulder and lap straps.

They are highly recommended for vehicles being shared between multiple drivers, and in general we always recommend upgrading to the aluminium adjusters due to their premium look and feel.

Standard Steel Adjusters
TRS 50mm Steel Adjuster

50mm (2") steel adjusters

TRS 75mm Steel Adjuster

75mm (3") steel adjusters

Premium Aluminium Adjusters
TRS 50mm Aluminium Adjuster

50mm (2") aluminium adjusters

TRS 75mm Aluminium Adjuster

75mm (3") aluminium adjusters

Pull Up or Pull Down Lap Strap Adjusters

Lap straps for Westfield TRS harnesses are available with either pull-up or pull-down adjusters. The Westfield harnesses that Willans offer all come with pull-down adjusters, with no pull-up option available.

We recommend pull-down adjusters that sit approximately 12cm from the buckle. We recommend these so you have easy access to the adjuster, and they will definitely be positioned within the confines of the seat.

As standard, pull-up adjusters will sit approximately 18cm from the fixing point at the end of the lap strap, making them difficult to access (they will be down by the sides of the seat), however we are happy to supply them if this is your preference. If you would like pull up adjusters that are a different distance from the fixing point, please contact us. We have supplied some customers with harnesses that have pull up lap adjusters that are 22cm from the fixing point but you would need to check to see if this would be right for your vehicle and the seat you have fitted.

Some harnesses, such as the TRS Westfield International 6 Point FIA Quick Adjuster HANS Harness include lap adjusters that are integrated with the buckle, to ensure the adjusters are always accessible and the maximum amount of adjustment is available.

Cost of Shipping Westfield Harnesses

All orders within the United Kingdom, including the Highlands, Islands, and Northern Ireland, are shipped free of charge. We also offer international shipping to:

For the latest shipping charges, visit our Shipping Charges page.

UK VAT of 20% is deducted from all export orders, including those to the Channel Islands.

Delivery Times

Our Westfield harnesses are manufactured in the UK, and we’ve worked closely with our suppliers to ensure fast turnaround times.

Estimated delivery times are displayed on each product listing, but we often deliver even faster.

Once the harnesses are ready, they are dispatched via a next-day service within the UK and express services for international orders.

Willans or TRS?

Not sure which brand is right for you?
Choosing between Willans and TRS is similar to selecting between luxury car brands like Volkswagen and Audi, or Rolls Royce and Bentley. Both brands deliver top-quality harnesses, and each offers excellent performance.

Some Westfield owners may have an affinity for Willans, recalling its pioneering role in motorsport safety during the Jackie Stewart era. Others might lean towards TRS, appreciating its widespread use in contemporary motorsport.

Both brands offer harnesses with various features, which may influence your decision. We’re big fans of both and are happy to recommend either based on your needs.

Click here to view our buying guide for the TRS range: TRS Harnesses Explained

Why Buy From Us?

Click here to view the full range of Westfield Harnesses

Click here to view our Westfield Harnesses Comparison Table