| Monday | 9.00am - 5.30pm |
| Tuesday | 9.00am - 5.30pm |
| Wednesday | 9.00am - 5.30pm |
| Thursday | 9.00am - 5.30pm |
| Friday | 9.00am - 5.30pm |
| Saturday | 9.00am - 5.30pm |
| Sunday | 10.00am - 4.00pm |
| Bank Holidays | 10.00am - 5.00pm |
2026 GIRO Register Mips II (UY) Unisex Cycling Helmet in Blue/Haze
Click & Collect - Always fast, easy & free
Select Click & Collect at checkout and pick up your order at a convenient location
| Monday | 9am - 5.30pm |
| Tuesday | 9am - 5.30pm |
| Wednesday | 9am - 5.30pm |
| Thursday | 9am - 5.30pm |
| Friday | 9am - 5.30pm |
| Saturday | 9am - 5.30pm |
| Sunday | 10am - 4.00pm |
| Bank Holidays | 10am - 4.00pm |
| Monday | 8am - 6.00pm |
| Tuesday | 8am - 6.00pm |
| Wednesday | 8am - 6.00pm |
| Thursday | 8am - 6.00pm |
| Friday | 8am - 6.00pm |
| Saturday | 9am - 5.30pm |
| Sunday | 10am - 4.00pm |
| Bank Holidays | 10am - 5.00pm |
Six years ago, Giro set a new standard in quality, look and feel in a recreational helmet with the original Register. The Register II Youth takes this to the next level by bringing styling and venting of Giro's highest-end road helmets into this lightweight, in-mold helmet in a Universal Youth size for younger riders. With a removable visor, a highly-adjustable fit system and the Mips Evolve Core rotational energy management system, the Register II Mips is a best-in-class recreation helmet.
With a removable visor that can shield you from the sun, 19 vents to keep you cool, and the added benefit of Mips Evolve Core, the Register Mips II helmet is an ideal choice for any ride, any time.
Key Features:
- The two-piece shell combines a tough outer hard shell with a polycarbonate lower shell permanently fused to the liner for durability without excess weight.
- All Giro helmets are designed to reduce as much energy as possible while meeting and exceeding stringent safety standards. The goal of Giro's Integrated Mips-equipped helmets is to reduce rotational forces. Giro believes that helmets equipped with this technology can reduce the amount of rotational force that may be transferred to rider's brain in certain impacts.
- Our Universal Fit helmets are sculpted to look good and fit great for almost anyone on the first try. By developing proprietary shell sizes based on specific customer groups, and combining them with an easily-adjustable fit system, it's easy for you get the right fit, straight out of the box, without the hassle or expense of trying multiple sizes.
- The Roc Loc Sport Mips fit system offers easy one-handed operation with a 7cm adjustment range. Its confident clicking feel and sound lets riders know that the helmet is adjusting to a comfortable fit.With comfort similar to Roc Loc 5 and ponytail compatibility, the new Roc Loc Sport fit system brings premium function to sport level helmets.
- Combined with the massive vents, internal channeling forces air to flow over the scalp, providing remarkable cooling power.
All UK Mainland Bike Deliveries Over £999 - Free Bike orders are sent via TNT/FedEx with estimated delivery within 1 working day after quoted dispatch time (For Scottish Highlands, Northern Ireland, Isle of Man and the Channel Islands deliveries please allow an additional 1-4 working days).Bike orders under £999 and eBikes will incur a £25 delivery fee.
Free Delivery On Orders Over £199.99 - When you spend more than £199.99 at 99 Bikes deliveries to a UK mainland address will be free (excludes bikes & large items).Certain regions and territories of the UK will incur additional charges, details of which can be found on our delivery page.
Click & Collect Orders -Please be aware Click & Collect orders may take some time to fulfil. We advise not to travel to your chosen store until you have been notified that your order is ready for collection.
At 99 Bikes our priority is to ensure that you are highly satisfied with your purchase. In the unlikely event that you aren't, we offer a 30 day online return policy* in which you can receive a full refund. Any item including bikes (with the exception of food) can be returned to us for any reason provided it is received by us in an unused and resalable condition in or with its original packaging which must be undamaged.
Find Out More About Returns >
| ADULT SUPER FIT SIZE | CIRCUMFERENCE |
| S | 51 - 55 cm |
| M | 55 - 59 cm |
| L | 59 - 63 cm |
| XL | 63 - 65 cm |
| ADULT SUPER FIT FULL FACE | CIRCUMFERENCE |
| S | 51 - 53 cm |
| M | 51 - 55 cm |
| L | 55 - 59 cm |
| XL | 59 - 63 cm |
| ADULT UNIVERSAL | CIRCUMFERENCE |
| Women Adult | 50 - 57 cm |
| Unisex | 54 - 61 cm |
| Extra Large | 58 - 65 cm |
| YOUTH SIZE | CIRCUMFERENCE |
| XS (Scamp Model) | 45 - 49 cm |
| S (Scamp Model) | 49 - 53 cm |
| XS (Dime Model) | 47 - 51 cm |
| S (Dime Model) | 51 - 55 cm |
| Universal Child | 47 - 54 cm |
| Universal Youth (Ages 5+) | 50 - 57 cm |




