Giro Source MIPS MTB Helmet

Giro Source MIPS MTB Helmet
26 reviews
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From 97,97
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Mantel Helmet Replacement
For all brands, the following applies: if your helmet gets damaged within 2 years of purchase and is no longer safe (cracks or fractures in the foam), we offer the option to replace the damaged helmet. You will receive a discount equal to 40% of the purchase value of your old bicycle helmet. The 2-year period applies from the purchase date of the helmet. If you buy a new bicycle helmet with the helmet replacement discount, the 2-year period does not restart. If your helmet gets damaged within 2 years of purchasing your first helmet, you can still make use of this offer. Giro / Lazer / Bell helmets: The Mantel Helmet Replacement applies for three years.
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Pros & Cons

Pros & Cons

  • The In-Mold construction increases protection and reduces weight.
  • Thanks to MIPS fall protection, the lateral and rotational forces of a fall are better absorbed.
  • The Roc Loc 5 adjustment system can be used to create a perfect fit.
  • The front visor can be adjusted to suit the conditions.
  • There are 17 vents for good ventilation.
  • The MIPS protection structure makes this MTB helmet slightly heavier.
Read more on what our customers have to say about this product

Specifications

Specifications

Brand Giro
Extra protection Yes, MIPS
MTB Helmet Type Trail / Enduro
Ventilation ★★★☆
Helmet finish Matte
Type of closure Snap buckle
Weight 341 grams

Reviews

Reviews

4.7 / 5
Average from 26 reviews
5
19 reviews
4
7 reviews
3
0 reviews
2
0 reviews
1
0 reviews

Most recent reviews

5 / 5

Good helmet

- Koen 31 October 2025

Nice compact and functional helmet for Trail and all-Mountain use.

Pros & Cons

Easy to adjust
Fits well on the head
Light helmet
No spare inlays
The colour
Automatic translation

5 / 5

Excellent MTB helmet.

- Jan 4 June 2025

MTB helmet with a good fit and stays in an excellent position even without a strap.

Pros & Cons

Beautiful model and colour scheme.
Excellent fit around the head.
Automatic translation

5 / 5

Just absolutely great!

- Casper 27 April 2025

After many fits and measures of different brands in different shops, I ended up with the Giro Source MIPS. Whereas with all helmets I felt pressure points or chafing edges, this is certainly not the case with the Source. The finish is of a high standard and the helmet also falls a bit deeper, giving you a very safe and secure feeling when wearing it. I have a rather narrow head but and that is not a problem at all with this helmet, the adjustment mechanism perfectly customises itself to the shape of my head. Circumference of my head is 59 cm, bought size L.

Pros & Cons

Comfort
Looks
Safety
Weight
Automatic translation

5 / 5

Summit should have done much earlier

- Rob 21 February 2024

Really very happy with it

Pros & Cons

Nice and light
Super good visor through this helmet
Tastes great out of the wind and fits well
Automatic translation

5 / 5

I like it fine

- CJ 2 January 2024

Sits comfortably and does not move annoyingly during an XC ride.

Pros & Cons

Comfortable
Good fit
Well-adjustable
Automatic translation

5

Koen, 31 October 2025

Good helmet

Nice compact and functional helmet for Trail and all-Mountain use.

  • Easy to adjust
  • Fits well on the head
  • Light helmet
  • No spare inlays
  • The colour
Automatic translation

5

Jan, 4 June 2025

Excellent MTB helmet.

MTB helmet with a good fit and stays in an excellent position even without a strap.

  • Beautiful model and colour scheme.
  • Excellent fit around the head.
Automatic translation

5

Casper, 27 April 2025

Just absolutely great!

After many fits and measures of different brands in different shops, I ended up with the Giro Source MIPS. Whereas with all helmets I felt pressure points or chafing edges, this is certainly not the case with the Source. The finish is of a high standard and the helmet also falls a bit deeper, giving you a very safe and secure feeling when wearing it. I have a rather narrow head but and that is not a problem at all with this helmet, the adjustment mechanism perfectly customises itself to the shape of my head. Circumference of my head is 59 cm, bought size L.

  • Comfort
  • Looks
  • Safety
Automatic translation

5

Rob, 21 February 2024

Summit should have done much earlier

Really very happy with it

  • Nice and light
  • Super good visor through this helmet
  • Tastes great out of the wind and fits well
Automatic translation

5

CJ, 2 January 2024

I like it fine

Sits comfortably and does not move annoyingly during an XC ride.

  • Comfortable
  • Good fit
  • Well-adjustable
Automatic translation

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Giro Source MIPS Giro Artex MIPS Giro Montaro MIPS II Fox Racing Speedframe Camo MIPS
Giro Source MIPS Giro Artex MIPS Giro Montaro MIPS II Fox Racing Speedframe Camo MIPS
26 reviews 23 reviews 3 reviews
Extra protection Yes, MIPS Yes, MIPS Yes, MIPS Yes, MIPS
What is your head circumference in cm's? 51 - 54 cm / 55 - 58 cm / 59 - 63 cm / 64 - 65 cm 51 - 54 cm / 55 - 58 cm / 59 - 63 cm / 64 - 65 cm 51 - 54 cm / 55 - 58 cm / 59 - 63 cm / 64 - 65 cm 51 - 54 cm / 55 - 58 cm / 59 - 63 cm
Helmet Size (Head circumference in cm) S / M / L / XL S / M / L / XL S / M / L / XL S / M / L
MTB Helmet Type Trail / Enduro Trail / Enduro Trail / Enduro Trail / Enduro
Ventilation ★★★☆ ★★★☆ ★★★☆ ★★★☆
Helmet finish Matte Matte Matte / Glossy Matte
From 97,97 109,89 From 139,97 From 90,72
This product View product View product View product

All specifications

Brand
Giro

General

MTB Helmet Type
Trail / Enduro
Weight
341 grams

Properties

Extra protection
Yes, MIPS
Ventilation
★★★☆
Type of closure
Snap buckle

Other

Helmet finish
Matte