Fox Mainframe Helmet (2024)
Stylish, affordable, Mips®-equipped trail helmet.
Fox Mainframe Helmet (2024) - Black / S is backordered and will ship as soon as it is back in stock.
MTB Helmets Size Chart
Speedframe
| Size | S | M | L |
|---|---|---|---|
| Head Size | 51 - 55 cm | 55 - 59 cm | 59 - 63 cm |
| Hat Size | 16.2 - 17.5 cm | 17.5 - 18.8 cm | 18.8 - 20.1 cm |
Mainframe
| Size | S | M | L |
|---|---|---|---|
| Head Size | 51 - 55 cm | 55 - 59 cm | 59 - 63 cm |
| Hat Size | 16.2 - 17.5 cm | 17.5 - 18.8 cm | 18.8 - 20.1 cm |
Flight
| Size | XS/S | M | L |
|---|---|---|---|
| Head Size | 51 - 55 cm | 55 - 59 cm | 59 - 63 cm |
| Hat Size | 16.2 - 17.5 cm | 17.5 - 18.8 cm | 18.8 - 20.1 cm |
Crossframe
| Size | S | M | L |
|---|---|---|---|
| Head Size | 51 - 55 cm | 55 - 59 cm | 59 - 63 cm |
| Hat Size | 16.2 - 17.5 cm | 17.5 - 18.8 cm | 18.8 - 20.1 cm |
Dropframe
| Size | S | M | L | XL |
|---|---|---|---|---|
| Head Size | 52 - 54 cm | 54 - 56 cm | 56 - 58 cm | 58 - 60 cm |
| Cheek Pad Size | 45 mm | 30 mm | 45 mm | 20 mm |
| Hat Size | 16.6 - 17.8 cm | 17.8 - 18.5 cm | 18.5 - 19.4 cm |
19.4 - 20.4 cm |
Proframe
| Size | S | M | L | XL |
|---|---|---|---|---|
| Head Size | 52 - 56 cm | 56 - 58 cm | 58 - 61 cm | 61 - 64 cm |
| Cheek Pad Size | 45 mm | 30 mm | 45 mm | 20 mm |
| Hat Size | 16.6 - 17.8 cm | 17.8 - 18.5 cm | 18.5 - 19.4 cm | 19.4 - 20.4 cm |
Rampage
| Size | XS | S | M | L | XL | XXL |
|---|---|---|---|---|---|---|
| Head Size | 53 - 54 cm | 55 - 56 cm | 57 - 58 cm | 59 - 60 cm | 61 - 62 cm | 63 - 64 cm |
| Hat Size | 16.9 - 17.2 cm | 17.5 - 17.8 cm | 18.2 - 18.5 cm | 18.8 - 19.1 cm | 19.4 - 19.7 cm | 20.1 - 20.4 cm |
Rampage Pro Carbon
| Size | S | M | L | XL |
|---|---|---|---|---|
| Head Size | 55 - 56 cm | 57 - 58 cm | 59 - 60 cm | 60 - 61 cm |
| Cheek Pad Size | 40 cm | 40 cm | 40 cm | 40 cm |
| Hat Size | 17.5 - 17.8 cm | 18.2 - 18.5 cm | 18.8 - 19.1 cm | 19.4 - 19.7 cm |
Rampage Comp
| Size | XS | S | M | L | XL | XXL |
|---|---|---|---|---|---|---|
| Head Size | 53 - 54 cm | 55 - 56 cm | 57 - 58 cm | 59 - 60 cm | 61 - 62 cm | 63 - 64 cm |
| Hat Size | 16.9 - 17.2 cm | 17.5 - 17.8 cm | 18.2 - 18.5 cm | 18.8 - 19.1 cm | 19.4 - 19.7 cm | 20.1 - 20.4 cm |
Fox Mainframe Helmet (2024)
Stylish, affordable, Mips®-equipped trail helmet. The Mainframe Helmet gives you exactly what you're looking for in an affordable helmet: proven safety features combined with easy trail style. Featuring extended coverage to protect more of your noggin', the proven Mips® impact protection will keep your brain safe in the event of a crash by absorbing and redirecting energies and forces that could otherwise damage it. With a lightweight fit system, this helmet will also keep you cool, and should the sweat stank build up, you can easily whip the moisture-wicking liner out and run it through the wash. Great protection at a price that'll save your wallet undue stress.
FEATURES
- Proven MIPS impact protection system reduces rotational forces in a crash by absorbing and redirecting energies and forces otherwise transmitted to the brain
- MIPS integrated fit system reduces weight and provides a more comfortable seamless fit
- Extended coverage for added safety
- Optimized venting with channeled in-molded EPS provides efficient cooling
- Removable washable moisture wicking liner
- Fixed position visor
- Model: FO31152
SIZING
| Size | Head circumference | Weight |
| One-Size (Youth) | 48-52cm | 310g |
| S | 51-55cm | 335g |
| M | 55-59cm | 380g |
| L | 59-63cm | 420g |
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