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Answer a few short questions and we'll make a recommendation on which size is best for you.

Giro Montaro III MIPS MTB Helmet Matte Black 2025
New Coming SoonComing SoonComing Soon

Giro

Giro Montaro III MIPS MTB Helmet Matte Black 2025

Regular price $280.00 Full price
Sale price $280.00
Club price
Regular price $299.99 Full price
Size
Translation missing: en.products.product.variant_options
Giro Regime Road Shoes White
42% Off Full Price

Giro

Giro Regime Road Shoes White

Regular price $230.00 Full price
Sale price $230.00
Club price
Regular price $399.00 Full price
Size
Translation missing: en.products.product.variant_options
Giro Isode II MIPS MTB Helmet Yellow UNI 2025
Coming Soon

Giro

Giro Isode II MIPS MTB Helmet Yellow UNI 2025

Regular price $120.00 Full price
Sale price $120.00
Club price
Regular price $139.99 Full price
Giro Agilis MIPS Road Helmet Matte Black 2025
New

Giro

Giro Agilis MIPS Road Helmet Matte Black 2025

Regular price $169.00 Full price
Sale price $169.00
Club price
Regular price $179.99 Full price
Size
Translation missing: en.products.product.variant_options
Giro Radix MIPS MTB Helmet Matte Black 2025
New

Giro

Giro Radix MIPS MTB Helmet Matte Black 2025

Regular price $169.00 Full price
Sale price $169.00
Club price
Regular price $174.99 Full price
Size
Translation missing: en.products.product.variant_options

Giro

Giro Isode II MIPS MTB Helmet Matte Stone UNI 2025

Regular price $120.00 Full price
Sale price $120.00
Club price
Regular price $139.99 Full price

Giro

Giro Isode II MIPS MTB Helmet Dark Sage UNI 2025

Regular price $120.00 Full price
Sale price $120.00
Club price
Regular price $139.99 Full price

Giro

Giro Isode II MIPS MTB Helmet Matte Black UNI 2025

Regular price $120.00 Full price
Sale price $120.00
Club price
Regular price $139.99 Full price
Giro Aries Spherical MIPS Road Helmet Matte White 2025
New Coming SoonComing SoonComing Soon

Giro

Giro Aries Spherical MIPS Road Helmet Matte White 2025

Regular price $499.00 Full price
Sale price $499.00
Club price
Regular price $529.99 Full price
Size
Translation missing: en.products.product.variant_options
Giro Trixter Youth MTB Gloves Purple 2025
New Coming SoonComing SoonComing Soon

Giro

Giro Trixter Youth MTB Gloves Purple 2025

Regular price $33.00 Full price
Sale price $33.00
Club price
Regular price $36.99 Full price
Size
Translation missing: en.products.product.variant_options
Giro Trixter Youth MTB Gloves Black 2025
New Coming SoonComing SoonComing Soon

Giro

Giro Trixter Youth MTB Gloves Black 2025

Regular price $33.00 Full price
Sale price $33.00
Club price
Regular price $36.99 Full price
Size
Translation missing: en.products.product.variant_options
Giro Jag Gloves Trail Green
15% Off Full Price

Giro

Giro Jag Gloves Trail Green

Regular price $38.00 Full price
Sale price $38.00
Club price
Regular price $44.99 Full price
Size
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Find Your Size

Step 1: Measure your height

  • Take off your shoes
  • Stand with your back straight against a wall
  • Balance a book on your head to mark your height on the wall
  • Measure your height by the distance from the floor to the mark
cm

Find Your Size

Step 2: Adjust your inseam

  • Based on your height, we’ve calculated a starting point.
  • You can measure your inseam by tucking a book between your legs so there is pressure but it isn’t uncomfortable.
  • Inseam typically falls with 5cm of the average.
cm

Find Your Size

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At 99 Bikes we stock the widest range of Giro Helmets and cycling apparel. Shop online or in-store today.

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