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Giro Quarter

Giro Quarter
  • Color: Matte Black
  • Color: Matte Black/Rasta
  • Color: Matte Frost
  • Color: Matte Blue Teal
  • Color: Matte Chalk
  • Color: Matte Dark Red
  • Color: Matte Iceberg
  • Color: Matte Whiskey
  • Color: Matte Grey
  • Color: Matte Portaro Grey
  • Color: Matte Trim Red
  • Color: Matte Turquoise
  • Color: Matte Vermillion
  • Color: Matte Warm Black
Color: Matte Black
Size: Select size
Please select options Unavailable


The Quarter is one of the lowest-profile helmets we've ever made, and it's also the lightest we've made with an ABS shell. The essentials are here—an EPS liner for impact management, a tough outer shell, riveted webbing anchors, and plush, sweat absorbent pads that are easy to swap for dialing in the fit. Another standout feature—the polyurethane coating—helps to protect the EPS liner from daily wear and tear. Plus it's available in a bunch of great colors and three Super Fit sizes.

Adult Super Fit SizeCircumference
Small 51 - 55 cm
Medium 55 - 59 cm
Large 59 - 63 cm

Note: We recommend you try helmets on before buying. Make sure the helmet fits with a little room when the fit system is loose, and sits low enough to protect your forehead without hindering your vision. Once you’ve got the right size, you can adjust the fit.

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 / Small 768686554094 7055601 210000044167
Matte Black / Medium 768686554100 7055602 210000044168
Matte Black / Large 768686554117 7055603 210000044169
Matte Chalk / Small 768686376627 7129542 210000045836
Matte Chalk / Medium 768686376634 7129543 210000045838
Matte Chalk / Large 768686376641 7129544 210000045840
Matte Portaro Grey / Small 768686376658 7129551 210000049509
Matte Portaro Grey / Large 768686376672 7129553 210000049511
Matte Trim Red / Small 768686376689 7129560 210000045281
Matte Trim Red / Large 768686376702 7129562 210000045283