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Helmet Buying Guide
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Not sure what sized bike is best?

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

Bell Full-10 Spherical MIPS Full Face MTB Helmet Matte Black
$525 Off Full Price

Bell

Bell Full-10 Spherical MIPS Full Face MTB Helmet Matte Black

$524.95 Full price
$524.95
Club price
$1,049.95 Full price
FOX Mainframe MIPS MTB Helmet White 2025
33% Off Full Price

FOX

FOX Mainframe MIPS MTB Helmet White 2025

$99.00 Full price
$99.00
Club price
$149.99 Full price
FOX Mainframe MIPS MTB Helmet Black 2025
33% Off Full Price

FOX

FOX Mainframe MIPS MTB Helmet Black 2025

$99.00 Full price
$99.00
Club price
$149.99 Full price
FOX Mainframe MIPS MTB Helmet Fluro Red 2025
33% Off Full Price

FOX

FOX Mainframe MIPS MTB Helmet Fluro Red 2025

$99.00 Full price
$99.00
Club price
$149.99 Full price
Bell Full-10 Spherical MIPS Full Face MTB Helmet Arise Matte/Gloss Black
$525 Off Full Price

Bell

Bell Full-10 Spherical MIPS Full Face MTB Helmet Arise Matte/Gloss Black

$524.95 Full price
$524.95
Club price
$1,049.95 Full price
Bell 4Forty MIPS Air MTB Helmet Black/Camo
50% Off Full Price

Bell

Bell 4Forty MIPS Air MTB Helmet Black/Camo

$124.00 Full price
$124.00
Club price
$249.99 Full price
Met Idolo 2 Road Helmet Black Matt
Clearance

Met

Met Idolo 2 Road Helmet Black Matt

$98.00 Full price
$98.00
Club price
$109.95 Full price
Met Idolo 2 Road Helmet White Glossy
Clearance

Met

Met Idolo 2 Road Helmet White Glossy

$98.00 Full price
$98.00
Club price
$109.95 Full price
FOX Proframe Fullface MIPS Helmet Matte Black 2023
MIPS

FOX

FOX Proframe Fullface MIPS Helmet Matte Black 2023

$359.00 Full price
$359.00
Club price
$399.99 Full price
Cinettica Kyklo Kids Helmet Blue
39% Off Full Price

Cinettica

Cinettica Kyklo Kids Helmet Blue

$30.00 Full price
$30.00
Club price
$49.99 Full price
FOX Dropfrome Pro MTB Helmet AS Matte Black 2025
22% Off Full Price

FOX

FOX Dropfrome Pro MTB Helmet AS Matte Black 2025

$349.00 Full price
$349.00
Club price
$449.99 Full price
100% Altec Helmet Black
50% Off Full Price

100%

100% Altec Helmet Black

$134.00 Full price
$134.00
Club price
$269.99 Full price
Giro Radix MIPS Helmet Matt Black
20% Off Full Price

Giro

Giro Radix MIPS MTB Helmet Matte Black 2025

$139.00 Full price
$139.00
Club price
$174.99 Full price
Jetblack Pro Fullface MTB Helmet Black

Jetblack

Jetblack Pro Fullface MTB Helmet Black

$228.00 Full price
$228.00
Club price
$249.95 Full price
Met Idolo Road Helmet Blue Metallic UNI
Clearance

Met

Met Idolo Road Helmet Blue Metallic UNI

$98.00 Full price
$98.00
Club price
$109.95 Full price
MET Terranova MIPS Helmet Black/Matt Glossy
32% Off Full Price

Met

MET Terranova MIPS Helmet Black/Matt Glossy

$135.00 Full price
$135.00
Club price
$199.95 Full price
MET Idolo Road Helmet Black
Clearance

Met

MET Idolo Road Helmet Black

$98.00 Full price
$98.00
Club price
$109.95 Full price
FOX Proframe Race Energy Youth MTB Helmet Black
25% Off Full Price

FOX

Fox Proframe Race Energy Youth MIPS Fullface MTB Helmet Black

$299.00 Full price
$299.00
Club price
$399.99 Full price
Bell 4Forty MIPS Air MTB Helmet Black
50% Off Full Price

Bell

Bell 4Forty MIPS Air MTB Helmet Black

$124.00 Full price
$124.00
Club price
$249.99 Full price
Jetblack Comp 2.0 Fullface Helmet White
Pre-Order

Jetblack

Jetblack Comp 2.0 Fullface Helmet White

$179.00 Full price
$179.00
Club price
$189.99 Full price
FOX Dropframe Pro Runn MTB Helmet Olive Green
37% Off Full Price

FOX

FOX Dropframe Pro Runn MTB Helmet Olive Green

$249.00 Full price
$249.00
Club price
$399.99 Full price
FOX Proframe Clyzo AS MTB Helmet Atomic Orange 2024
27% Off Full Price

FOX

FOX Proframe Clyzo AS MTB Helmet Atomic Orange 2024

$328.00 Full price
$328.00
Club price
$449.99 Full price
Bell Full-10 Spherical MIPS Full Face MTB Helmet Fasthouse Happy Hour Grey/Black
$525 Off Full Price

Bell

Bell Full-10 Spherical MIPS Full Face MTB Helmet Fasthouse Happy Hour Grey/Black

$524.95 Full price
$524.95
Club price
$1,049.95 Full price
Lazer Lupo MTB Helmet Matte Fern

Lazer

Lazer Lupo MTB Helmet Matte Fern

$94.00 Full price
$94.00
Club price
$99.95 Full price
Bell XR Spherical MIPS Road Helmet Blue
68% Off Full Price

Bell

Bell XR Spherical MIPS Road Helmet Blue

$120.00 Full price
$120.00
Club price
$379.95 Full price
MET Vinci MIPS Helmet Red
37% Off Full Price

Met

MET Vinci MIPS Helmet Red

$118.00 Full price
$118.00
Club price
$189.95 Full price
FOX Mainframe MIPS Helmet Fluoro Red 2024
29% Off Full Price

FOX

FOX Mainframe MIPS Helmet Fluoro Red 2024

$99.00 Full price
$99.00
Club price
$139.99 Full price
Bell 4Forty Mips Helmet Black/Camo
42% Off Full Price

Bell

Bell 4Forty Mips Helmet Black/Camo

$115.00 Full price
$115.00
Club price
$200.00 Full price
Bell Z20 Mips Helmet Mat Orange/Black Ghost
50% Off Full Price

Bell

Bell Z20 Mips Helmet Mat Orange/Black Ghost

$184.95 Full price
$184.95
Club price
$369.95 Full price
Lazer Strada Kineticore Road Helmet Matte Dark Grey/Flash Yellow
71% Off Full Price

Lazer

Lazer Strada Kineticore Road Helmet Matte Dark Grey/Flash Yellow

$49.00 Full price
$49.00
Club price
$169.99 Full price
Bluegrass Super Bold Helmet (Glossy/Black)
33% Off Full Price

Bluegrass

Bluegrass Super Bold Helmet (Glossy/Black)

$60.01 Full price
$60.01
Club price
$89.99 Full price
Bell Local Nitro Circus Helmet Navy/Silver
44% Off Full Price

Bell

Bell Local Nitro Circus Helmet Navy/Silver

$55.00 Full price
$55.00
Club price
$99.99 Full price
Bluegrass Rogue MIPS Helmet Titanium Tie-Dye
34% Off Full Price

Bluegrass

Bluegrass Rogue MIPS Helmet Titanium Tie-Dye

$150.00 Full price
$150.00
Club price
$229.95 Full price
Bell Z20 Mips Helmet Mat/Gloss Black
59% Off Full Price

Bell

Bell Z20 Mips Helmet Mat/Gloss Black

$149.00 Full price
$149.00
Club price
$369.99 Full price
Cinettica Kyklo Kids Helmet Red
39% Off Full Price

Cinettica

Cinettica Kyklo Kids Helmet Red

$30.00 Full price
$30.00
Club price
$49.99 Full price
Bluegrass Super Bold Helmet Matt Black
33% Off Full Price

Bluegrass

Bluegrass Super Bold Helmet Matt Black

$60.00 Full price
$60.00
Club price
$89.95 Full price

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

Your results

For the we suggest the following size.

More comfort More speed
Height: --
Inseam: --
Adjusted Height: --

Find Your Size

We have saved your measurements.

Recommended sizes will now be highlighted on the page.

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CLUB 99 MEMBERSHIP

CLUB 99 MEMBERSHIP

Exclusive club benefits
FREE SHIPPING OVER $99*

FREE SHIPPING OVER $99*

*Excluding bikes/bulky items

99 Bikes acknowledges the Traditional Custodians of the Land on which we live, work and ride, and pay respects to Elders past and present

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