Giro Insurgent Spherical Full Face MTB Cycling Helmet







Confidence to commit
From the Enduro World Series to Red Bull Rampage, top riders demand the Giro Insurgent™ Spherical and the confidence it delivers. Our engineers maximized the intake points for cool, fresh air, resulting in cooling power 50% more efficient than the Disciple™ Mips®. A lightweight, soft-touch, and absorbent pad set includes two different cheek pads with each of the three sizes, allowing for a customizable fit, which are secured via a directional snap system allowing for easy removal in case of a crash. At 1,040 grams in size M/L, the Insurgent is 200 grams lighter than the Disciple Mips despite additional features including the advanced protection performance of Spherical Technology™. Insurgent Spherical utilizes a pair of different density EPP and EPS foam layers that work like a ball and socket to redirect impact energy in a crash. Additional features include a patent-pending Flex Gasket along the lower edge of the helmet, designed to reduce the role a helmet can play in certain collarbone impacts, tool-free breakaway visor bolts with integrated Allen key receiver for easy removal, and a central visor bolt hole, which does double-duty as the ideal mount for P.O.V. action cameras.
Key Features:
- Construction
- In-Mold construction
- Progressive Layering with EPS outer liner & EPP inner liner
- EPP chinbar liner
- Visor
- Adjustable moto-style screw-in visor with tool-free breakaway visor bolts
- Ventilation
- 20 Vents with internal channeling
- Wind Tunnel™ cheek pad ventilation
- Stack Ventilation
- Optimized airflow intake vents and channeled ventilation
- Fit System
- Fit Kit padding with included cheek pads in 25MM and 35MM (aftermarket pad kits available)
- Product Weight
- 1040g (size Medium CPSC, CE)
- Electronics Compatibility
- Added central visor bolt hole enables action camera mounting
- Certification
- Complies with the US CPSC Safety Standard for Bicycle Helmet for Persons Age 5 and Older
- ASTM-1952-DH
- ASTM-2032-BMX
- EU: CE EN1078
- AS/NZS
- Highlights
- Patent-pending Flex Gasket
- Two sets of cheek pads for variable thickness adjustability
- Directional snap system for removable cheek pads
- 25mm webbing with D-Ring buckle
- Ionic+™ anti-microbial padding
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 Insurgent Spherical Full Face MTB Cycling Helmet
In Stock
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