
Giro Coalition Spherical Helmet
The Giro Coalition Spherical helmet is a feather-light full-face mountain bike helmet, weighing just 800 grams (M/L). It combines Spherical Technology powered by MIPS with Progressive Layering using EPP and EPS foam for advanced protection. NTA-certified, it delivers best-in-class ventilation through massive front intake ports, rear exhaust vents, and deep internal channeling. The patent-pending Halo System integrates a Pebax chinbar with elastomeric bushings, absorbing and dissipating kinetic forces, exceeding standard chinbar deflection tests by nearly 2x. Comfort is enhanced with DryCore, sweat management, IONIC+ odor control, and removable cheek pads for a customizable fit. Ideal for trail riders, the Coalition Spherical sets a new benchmark for lightweight full-face protection.
Key Features
- Halo System Chinbar: Combines a Pebax® chinbar and elastomeric bushings to absorb and dissipate kinetic forces
- Spherical Technology powered by MIPS: Ball-and-socket design redirects impact forces away from the brain
- Optimized Ventilation: Massive front intake ports, rear exhaust vents, and deep internal channeling maximize airflow and cooling
Original: $244.99
-65%$244.99
$85.75More Images




Giro Coalition Spherical Helmet
The Giro Coalition Spherical helmet is a feather-light full-face mountain bike helmet, weighing just 800 grams (M/L). It combines Spherical Technology powered by MIPS with Progressive Layering using EPP and EPS foam for advanced protection. NTA-certified, it delivers best-in-class ventilation through massive front intake ports, rear exhaust vents, and deep internal channeling. The patent-pending Halo System integrates a Pebax chinbar with elastomeric bushings, absorbing and dissipating kinetic forces, exceeding standard chinbar deflection tests by nearly 2x. Comfort is enhanced with DryCore, sweat management, IONIC+ odor control, and removable cheek pads for a customizable fit. Ideal for trail riders, the Coalition Spherical sets a new benchmark for lightweight full-face protection.
Key Features
- Halo System Chinbar: Combines a Pebax® chinbar and elastomeric bushings to absorb and dissipate kinetic forces
- Spherical Technology powered by MIPS: Ball-and-socket design redirects impact forces away from the brain
- Optimized Ventilation: Massive front intake ports, rear exhaust vents, and deep internal channeling maximize airflow and cooling
Product Information
Product Information
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Shipping & Returns
Description
The Giro Coalition Spherical helmet is a feather-light full-face mountain bike helmet, weighing just 800 grams (M/L). It combines Spherical Technology powered by MIPS with Progressive Layering using EPP and EPS foam for advanced protection. NTA-certified, it delivers best-in-class ventilation through massive front intake ports, rear exhaust vents, and deep internal channeling. The patent-pending Halo System integrates a Pebax chinbar with elastomeric bushings, absorbing and dissipating kinetic forces, exceeding standard chinbar deflection tests by nearly 2x. Comfort is enhanced with DryCore, sweat management, IONIC+ odor control, and removable cheek pads for a customizable fit. Ideal for trail riders, the Coalition Spherical sets a new benchmark for lightweight full-face protection.
Key Features
- Halo System Chinbar: Combines a Pebax® chinbar and elastomeric bushings to absorb and dissipate kinetic forces
- Spherical Technology powered by MIPS: Ball-and-socket design redirects impact forces away from the brain
- Optimized Ventilation: Massive front intake ports, rear exhaust vents, and deep internal channeling maximize airflow and cooling






















