Giro "Tyrant Spherical" MTB Helmet - Matte Portaro Grey
- Weight : 0.62kg / 1.37lbs
- Packaging Unit: 1 Piece
- Product ID (PID): 35109
- Product safety
Weight
The heaviness of a BMX part, measured by weighing. It's worth noting that weight specifications for BMX parts can vary and may not always be precise. Several factors contribute to this:Manufacturer's weight specifications may be inaccurate or incomplete.The weight of two identical parts can also differ.We cannot weigh every individual part.For example, if there are handlebars in different heights, the manufacturer usually provides just one weight specification for all heights. When weighing two identical tires, you might get two different results.
Source: BMX Glossary
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Online: https://www.kunstform.org/en/giro-tyrant-spherical-mtb-helmet-matte-portaro-grey-p-35109
Printed: 10/20/2026
Printed: 10/20/2026
The Giro "Tyrant Spherical" MTB Helmet - Matte Portaro Grey is built for trail riders equally at home on wooded singletrack and dirt jumps. Its full-cut design pulls the coverage low and wraps over the ears while keeping the style understated. Under the hood sits Mips Spherical: two foam layers work together like a ball and socket to redirect impact energy, with lower-density EPP on the outside for slower crashes and EPS on the inside for high-speed hits. Wind Tunnel ventilation with 14 openings keeps air moving, the Roc Loc Air DH system dials in the fit, and the visor is adjustable.
Facts: Giro "Tyrant Spherical" MTB Helmet - Matte Portaro Grey
- Material: hard shell, EPS, EPP
- Cover: hard shell with in-mold polycarbonate lower section
- Core: progressive liner construction, EPP outer layer, EPS inner layer
- Padding: quick drying
- Safety Standard: CE (EU), CPSC (USA)
- Features: Mips Spherical safety system, Roc Loc Air DH fit system, 14 vents, adjustable visor, deep coverage including covered ears
