Stilo ST5 F Zero 8860

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Part Number/SKU:AA0700CG3R
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Size Guide

Reasons to Buy

  • Incredibly lightweight FIA 8860-2018 safety standard full-face helmet
  • 100% T1000 Carbon construction with fitted electronics and earplug connection
  • Smallest shell size better aerodynamics and comes with additional spoilers
  • Best comfort with multiple adjustments for a bespoke fit (in-store only)
  • The internal cooling system enhanced with attachments
  • Visors, spoilers and HANS helmet bag supplied with this model

Part Number: AA0700CG3R


The Stilo ST5F Zero 8860 carbon is the latest generation of helmets from this motorsport dedicated company who have made the ST5 range the world's most advanced racing helmets. It is the lightest helmet in its class and needs to be held to really appreciate the featherweight feel and quality manufacturer.

While the look is unmistakenly a Stilo the ST5 is the narrowest and smallest shell in its class, and in recent F1 tests is aerodynamically up there with the best. A first for Stilo is that the ST5 small shell now fits a person with a larger sized head, a feat all manufacturers in the past have been unable to manage, the outcome of this is drivers using a larger heavier shell to accommodate the Large size helmet, which is the most popular size.

The smaller shell size has a number of benefits for drivers in wearing the ST5, much lighter weight on your neck, better aerodynamics from and more room in the tighter spaces of a modern GT or Le Mans type vehicle.

The Zero model of the ST5 F with its FIA 3mm long visor and part fitted electronics, makes it ideal for racing when radio communication is required. Weighing in at 1.2kg has passed the tough FIA 8860-2018 standard, not just passed but well within the required tolerances. While it's the safest helmet on the market, the ST5 Zero range is exceptionally light to wear when under the G-forces of a modern, high-performance race car.

The opening of the helmet is now 5mm deeper, offering far better peripheral vision. Drivers will also benefit from the new driver ventilation system for open-top cars, and GT/Saloon cars the ST5 F has a Top Air ventilation system for fresh air to the face and a new channelled head cooling system for even more comfort. 

Another major benefit for all model ST5 helmets is the interior. A double density liner offers an improved fit to give the user comfort levels never previously achieved. The super-soft liner next the skull fits snuggly around the head giving a positive snug fit of unparalleled comfort. The ST5 F has the option of a side drink system which allows an internal drinking system, but in addition, space has been made for a frontal drinking system through the lower front vents and needs no major modification and means no scrutineer issues.

The helmet comes with Stilo's part electronics, with a microphone built into the front chin section, and an earplug connection fitted directly below the integral comm port to the one side of the helmet for easy connection of your radio system. 

The helmet comes fitted as standard with a clear visor and comes with medium and dark tint options, also a top air system, front & rear spoilers and a Stilo Hans helmet bag. 

Small shell - 1200g
Large shell - 1370g

Small Shell - Extra Small 54cm, Small 55cm, Medium 57cm, Large 59cm
Large Shell - XL 61cm, XXL 63&64cm

Helmet Standard - FIA 8860-2018 

Full Stilo ST5 Helmet Range Guide

Helmet Fit

Stilo Helmet Sizes

Stilo helmets are available in different shell sizes within the range of full face and open face helmets. ST5 helmets (full face) come in two shell sizes: small and large. The small shell covers all sizes from 54 (XS) to 59 (L). The large shell is size 60 (L+) to 64 (XXXL) The only exceptions to this are the ST5 CMR junior karting helmet which is only available in a new reduced size (narrower) small shell from 54 (XS) to 59 (L).

In Venti WRC, WRX and Trophy (open face) models, Stilo have developed a third (medium) shell size to keep mass and weight as minimal as possible for the most popular of sizes, 59 and 61. So now, for this range, 54 (XS) to 58 (L) are in a small shell, 59 (L) and 61 (XL) are in the new medium shell and 63 (XXL) and 64 (XXXL) are in the large size shell. Another development from Stilo in the new Venti range is that for the first time, Carbon, 8860 and Zero models are all available in the largest size shell, something not previously available in the outgoing models and this is also a size that other open face helmet brands do not offer.

Stilo Venti and ST5 helmets generally are a little tighter fitting than some other brands, so do bear this in mind when choosing your helmet size and speak with us if you need some help on this.

With the new Stilo Sport range of clubman open face helmets, there are two shell sizes, XS-M are covered by the small shell size and L & XL are covered by the large shell. One point to note is that the internal linings of the Stilo Sport range are a different fit to the WRC helmets, and the fit is a little more relaxed and are more true to size.

Stilo Helmet Size Guide

CM 54 55 57 59 60 61 63 64
Shell S S S S L L L L

How To Measure Your Head

At Nicky Grist Motorsports we understand the importance of a well fitting helmet. Get it right and you are on a fast track to optimum performance, but get it wrong and you’ll suffer distractions and discomfort that can put your safety at risk.

The key thing to remember is not to simply take the circumference measurement and buy a helmet based on that size. We need to look at the width and length of your head also, as that does affect the helmet size you need.

To measure your head as accurately as possible and to help us provide you with the optimum fit, please measure as shown below and make a note of your sizing to send to us. Always wear a balaclava when taking head measurement for a helmet as the extra 2-3mm does make a difference to the circumference measurement and it also presses your ears nice and close to your head.

Head Circumference

1. Circumference

Measure around your head with a tape measure. This must be above the ear and while you are wearing a hood (if you use one).

2. Length

Using callipers or similar device, measure the front to back of your head. This needs to be the furthest away points.

3. Width

Again use a tool of fabricated device to measure the width of your head at the widest points.



These are quite a specific tool and we appreciate that not everyone will have a set lying around. If you are stuck, you might be able to fabricate something, but please get in touch and we can advise you further.

If you need any more help and advice, please don't hesitate to contact us:



As with any of our products, our team are on hand to provide expert advice.

Call us on 01981 241040 or email [email protected] for a quick response.


All shipping has a tracking facility and can be given to you on request.

Shipping costs are calculated based on the size/weight of an item and the location of the parcel’s final destination, when your required items are placed into the shopping basket and you have entered your delivery information the cost of shipping will be calculated for you before purchase.

UK Next Day Delivery

UK Mainland Next Working Day delivery is available. Orders must be received before 3pm to be eligible for next working day delivery in the areas this service is available. You will be notified if there are any issues with your shipment once we have received the order.

If you have supplied us with a valid mobile number or email address, you will be notified by text or email of the hour delivery slot allocated to your parcel on the morning of its delivery day.

Highlands and Islands

Shipping to UK Highlands and Islands takes 2 working days and incurs a slightly higher cost than the other mainland UK destinations.

Worldwide Shipping

Through TNT and Fedex we are able to ship items anywhere in the world. This usually takes between 3-5 working days but can be longer in some cases. All EU and worldwide shipments will be sent excluding VAT and Taxes, but you will be required to pay your countries import duties when they arrive in the country of origin.

Special Services

EU and Worldwide shipments can also have an Express service at an extra cost, again please call us and we can discuss your requirements with you.

UK Mainland Saturday Delivery may be available at an extra cost, but again please call us and we can discuss your requirements.

Other Shipping Options

We don’t have any other options on hand, but that’s not to say we can’t arrange them. We have previously orchestrated a person to fly to Morocco in 24 hours with a desperate requirement. And we have also arranged for a Taxi delivery of items in the UK for a same-day. These services can be expensive options but can be arranged. Please try us, we can’t promise but will do all we can to deliver.

Shipping to Race Tracks & Hotels

We commonly ship items to race tracks and hotels for competitors all around the world. This is not a problem, and we can arrange this for you. However, to speed up the process, please take the following steps:

  1. Speak to the location you are wishing to ship to and get their precise address and, location within the address, the name of the person to contact as well as a valid phone number for them.
  2. Please call us rather than order online to confirm availability.
  3. We will then do our very best to take care of the order for you.
  4. We will supply you with a tracking number to monitor the parcels progress

Terms & Conditions

Next day delivery - while we use the most reliable method of delivery available in the UK, we cannot guarantee that a delivery will reach you the next day. We are yet to see a package go missing but severe weather conditions or issues with an address can occur and play a part in a delay. If items are not in stock you will be notified during our working hours.

Customs charges - all customs charges are the responsibility of the customer. Please contact your local customs office if you require further information.

Tracking Numbers - For UK deliveries we don’t send tracking numbers, although you will get an hour delivery slot if you have supplied a mobile number or email address. International tracking numbers are available on request.

Estimated delivery time - delivery times are an estimate and can vary if your item is out of stock. If this is the case you will be notified as soon as possible. All delivery times are an estimation and not a guarantee.

Restricted items - Liquids and pressurised items cannot be shipped outside of UK Mainland.


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