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Giro Tyrant Spherical

Giro Tyrant Spherical
  • Color: Matte Citron
  • Color: Matte Black
  • Color: Matte Black Hypnotic
  • Color: Matte True Spruce
  • Color: Matte Metallic Black/Ano Lime
  • Color: Matte Portaro Grey
  • Color: Matte Trim Red
  • Color: Bicycle Nightmares
  • Color: Bicycle Nightmares
Please select options Unavailable


The Tyrant MIPS Helmet is designed to meet the needs of todays progressive trail riders. Equally at home on forest singletrack and dirt jumps, Tyrant's attitude ushers in the modern era of mountain biking.

While the style is understated, the Tyrant boasts countless under-the-hood tech breakthroughs including Wind Tunnel Ventilation and MIPS Spherical technology. MIPS Spherical utilizes a pair of foam layers that work like a ball and socket to redirect impact energy in a crash. One layer is EPS, which is well suited to high-speed crashes. The other is a lower-density EPP foam with rebound characteristics to address low-speed, roll-around-in-the-dirt-type spills. The added coverage of this full cut design further enhances protective capability, while taking helmet design in a new direction for riders seeking style over speed.

- Channeled stack ventilation at brow line 14 vents with internal channeling
- Super fit
- Hardshell with in-mold polycarbonate
- Hardbody lower wrap
- Progressive layering with EPS outer liner and EPP inner liner
- Roc Loc Air fit system

Complies with the US CPSC Safety Standard for Bicycle Helmet for Persons Age 5 and Older

Part Numbers

Option UPC MPN Store SKU
Matte Black / Medium 768686266683 7113381 GRT23645388S
Matte Black / Large 768686266690 7113382 GRT23493382S
Matte Black Hypnotic / Small 768686266737 7113389
Matte Black Hypnotic / Medium 768686266744 7113390
Matte Black Hypnotic / Large 768686266751 7113391
Matte Citron / Small 768686266799 7113398
Matte Citron / Medium 768686266805 7113399
Matte Citron / Large 768686266812 7113400
Matte True Spruce / Small 768686266911 7113416
Matte True Spruce / Medium 768686266928 7113417
Matte True Spruce / Large 768686266935 7113418
Bicycle Nightmares / Small 768686299582 7117473
Bicycle Nightmares / Medium 768686299599 7117474
Bicycle Nightmares / Large 768686299605 7117475
Matte Trim Red / Small 768686376238 7129341
Matte Trim Red / Medium 768686376245 7129342
Matte Trim Red / Large 768686376252 7129343