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 |
Giro Syntax Mips Helmet in White
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 |
The Syntax Mips® combines a touch of European flair with slightly deeper coverage and high-performance features — all tucked into a very slim design. The fit is luxurious and secure, thanks to our highly adjustable Roc Loc™ 5 Air Mips system that allows you to customize fit and feel for great stability and long-range comfort while providing an added measure of protection from rotational forces in the event of an angled impact. The outer shell is molded from a tough polycarbonate that's fused permanently to the EPS foam liner using our In-Mold construction process to enhance durability and ventilation without excess bulk.
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 will incur a £25 delivery fee.
Free Delivery On Orders Over £50.00 - When you spend more than £50.00 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 |