Giro Tremor Youth/Junior Cycling Helmet
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- Full Hard body shell
- Removable visor
- Quick-Dry padding
- Construction: In-mold polycarbonate shell with EPS liner
- Fit System: Roc Loc Sport
- Ventilation: 18 vents
- UY 19.75" - 22.5" / 50 - 57cm
Please Note: Image is for display purposes only. The writing on the Purple option is BLACK not pink as shown.
Occasionally, without notice, manufacturers change product design and/or specifications.
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Giro Helmet Sizing
Use the Giro size chart to find the best fit for you.
Giro Helmets Size Chart
|Adult||21.25 - 24"||54 - 61cm|
|Women||19.75 - 22.5"||50 - 57cm|
|Extra Large||22.75 - 25.5"||58 - 65cm|
|Youth||19.75 - 22.5"||50 - 57cm|
|Child||19.75 - 21.75"||50 - 55cm|
|Small/Medium||18 - 19.75"||46 - 50cm|
|Medium/Large||19.75 - 21.5"||50 - 54cm|
|Toddler||18.75 - 20.5"||48 - 52cm|
SuperFit sizing system is based on "human scale factors" data and over 25 years of handcrafting helmets. By creating helmet molds in up to 4 adult sizes to match the human body's form, our SuperFit sizes comfortably and securely fit riders, and feel like they are custom made just for you.
Models Include: Aerohead Ultimate MIPS, Aeon, Fathom, Savant, Foray MIPS, Sutton, Sub Pop Foray, Reverb, Quarter, Sonnet, Saga MIPS,
|Extra Small||18.5 - 20"||47 - 51cm|
|Small||20 - 21.75"||51 - 55cm|
|Medium||21.75 - 23.25"||55 - 59cm|
|Large*||23.25 - 24.75"||59 - 63cm|
|Extra Large||24 - 25.55"||61 - 65cm|
*The Large Quarter bike helmet is the following dimensions: Large: 23.25" - 24.25" / 59-61.5cm
Disciple MIPS Helmet Sizing
|Extra Small||20 - 20.75"||51 - 53cm|
|Small||21.25 - 22"||54 - 56cm|
|Medium||22.5 - 23.25"||57 - 59cm|
|Large||23.5 - 24.75"||60 - 62cm|
Read our clothing size guide for more information on sizing.
Please note, all size information is provided as a guide - if you're unsure or need any further assistance you can call us on 01792 799508 ... we're happy to help!
Delivery & Guarantee
UK Delivery Information
We are committed to offering fast and free delivery, whether you're ordering bikes, accessories or clothing. Our standard delivery service is FREE in the UK, regardless of the size and on all orders over £20.
Please note that bulky products and bikes shipped to outlying UK regions are excluded from free shipping.
Please note that Pre-Order dates can sometimes change due to updated stock information.
Click here for more UK and international delivery information.
Returns & Warranty
It's easy to return a product with our 365 day, hassle free returns.
We will give you a full refund or exchange on any item that is returned to us unused/unfitted, in a resaleable condition and in its original packaging (where possible).
Please note: For hygiene reasons, we cannot accept returns of facemasks, undershorts or underwear if the item has been removed/unsealed from its original packaging.
If your item develops a fault or arrives damaged, please contact us first so we can resolve the issue for you as quickly as possible.
For more information please visit our Returns & Warranty page.