Giro Source Mips MTB Helmet
Capably equipped for fun and adventure.
The Giro Source™ MIPS® MTB Cycling helmet combines advanced performance and protection in a rugged, trail-ready design. Featuring deep coverage with aggressive ventilation from 16 vents coupled with deep internal channelling, it helps keep things cool even when the riding gets rowdy. And with the comfort and secure feel of the Roc Loc 5 fit system with Integrated MIPS® brain protection, plus a moto-style adjustable screw-in visor and full lower Hardbody™ durability, you get a Mountain bike helmet that's capably equipped for fun and adventure.
Key Features:
- Integrated MIPS® brain protection system
- Adjustable moto-style screw-in visor
- Coolfit™ padding
- Construction: Full-wrap In-Mold polycarbonate shell with EPS liner
- Fit System: Roc Loc® Sport MIPS
- 17 Vents and deep internal channelling for better cooling
- The Giro Source MIPS MTB helmet is available with 0% APTR finance
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 |
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Giro Source Mips MTB Helmet
Superb fit and price.
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.
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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.