What size helmet is a 23 inch head?

For a 23-inch head circumference, the corresponding helmet size would typically be:

Helmet Size: Medium

• Head Circumference: 22 - 23 inches (56 - 58 cm)

Sizing Guide Breakdown

• Small: 20.5 - 21.5 inches (52 - 54 cm)
• Medium: 22 - 23 inches (56 - 58 cm)
• Large: 23.5 - 24.5 inches (59 - 62 cm)
• X-Large: 24.5 - 25.5 inches (63 - 65 cm)

Important Notes:

• Helmet sizing can vary slightly between brands, so it's always a good idea to check the manufacturer's specific sizing chart.
• Fit Test: When trying on the helmet, make sure it feels snug but comfortable. There shouldn't be significant gaps between your head and the helmet, and the helmet should stay in place without shifting around.
• The chin strap should also fit comfortably under your chin, with only two fingers' width of space, as per the 2-2-2 rule.

If you're at the higher end of the 23-inch range, you might want to try a Large size to ensure a comfortable fit, especially if the helmet has padding that can be adjusted.