Giro Tyrant Spherical MTB Helmet
MBR Editors Choice Award 2019
STYLE OVER SPEED. DESIGNED TO MEET THE NEEDS OF TODAY’S PROGRESSIVE TRAIL RIDERS, THE TYRANT MIPS® HELMET HAS ATTITUDE AND INNOVATIONS THAT USHER IN THE MODERN ERA OF PROGRESSIVE MOUNTAIN BIKING.
THE TYRANT MIPS® HELMET IS DESIGNED TO MEET THE NEEDS OF TODAYS PROGRESSIVE TRAIL RIDERS. EQUALLY AT HOME ON FOREST SINGLETRACK AS IT IS AT THE DIRT JUMPS, TYRANTS ATTITUDE USHERS IN THE MODERN ERA OF MOUNTAIN BIKING.
While the style is understated, the Tyrant boasts countless under-the-hood tech breakthroughs including Wind Tunnel Ventilation and MIPS Spherical technology. MIPS Spherical utilizes a pair of foam layers that work like a ball and socket to redirect impact energy in a crash. One layer is EPS, which is well suited to high-speed crashes. The other is a lower density EPP foam with rebound characteristics to address low-speed, roll-around-in-the-dirt-type spills. The added coverage of this full cut design further enhances protective capability, while taking helmet design in a new direction for riders seeking style over speed.
VENTILATION - CHANNELED STACK VENTILATION AT BROW LINE 14 VENTS WITH INTERNAL CHANNELING SUPER FIT
CONSTRUCTION - HARDSHELL WITH IN-MOLD POLYCARBONATE HARDBODY LOWER WRAP PROGRESSIVE LAYERING WITH EPS OUTER LINER AND EPP INNER LINER
FIT SYSTEM - ROC LOC® AIR
Occasionally, without notice, manufacturers change product design and/or specifications.
Giro Helmet Size Guide
How to measure your head size
To find the circumference of your head, place a tape measure in the centre of your forehead, wrap it around above your ears and around the back of your head. If there's a slight difference between two different sizes, always go for the tighter size.
Giro cycling helmets are adjustable so will fit a range of head sizes. Once you know the circumference of your head, select an appropriate helmet size. For example, if your measurement is 57cm then a size M (55-59cm) or a One Size (54-61cm) will fit you.
Giro Men’s or Unisex Helmet Size Chart
Helmet Size |
Head Circumference cm |
One Size |
54 – 61 |
Small |
51 – 56 |
Medium |
55 – 59 |
Large |
59 - 63 |
Extra Large (selected models) |
61 - 65 |
Customer reviews and Q&A's are disabled because you declined functional cookies.
To enable reviews and Q&A's click the 'Cookie Settings' button below and enable functional cookies.
Giro Tyrant Spherical MTB Helmet
Christmas Delivery
- Select an option for Christmas availabilityFits well, looks amazing, easy adjustment,value for money.well done tredz
Cycle to Work is a salary sacrifice scheme, where you can save up to 42% off a new Bike and Safety equipment. This means the cost is deducted from your salary as a non-cash benefit, so you save on tax and national insurance.
Here at Tredz, we accept Cycle to Work vouchers from all national schemes. For more information click here.
At Tredz we make finance easy. You can choose from a range of flexible finance repayments from 6 months up to 48 months, choose to place a deposit and pay the balance on finance. Go with a 0% APR finance deal with absolutely no interest on payments, or a 9.9% APR Buy Now Pay later option with a choice of 12 or 24 deferred payment options, or a longer-term 14.9% APR option with lower monthly payments. For more information click here.
At Tredz, we’re committed to bringing you the best products at the best prices. If you find a product cheaper elsewhere, simply contact us for an immediate response using our live chat service. Click here to discuss your price match with an agent now for help.
Subject to Terms and Conditions
At Tredz, we offer a fast high quality service, with a range of options from free delivery on orders over £30, next day and convenient click & collect from one of our stores. Simply select within the checkout.
*Courier deliveries to Northern Ireland, Isle of Man, Isle of Wight, Channel Islands and the Scottish Highlands/Islands will incur a charge.At Tredz, if you are not 100% happy with your order, then you can use our simple hassle free returns service. Simply return the item new and unused in the manufacturers original packaging within 365 days of purchase. Bikes and larger items are collected by courier.
When you receive your bike, all you'll need to do is unpack it, attach the pedals, turn the handlebars and ride.
To help you get started we have put together a handy Bike Building Guide, click here.