Skip to main content

Fox Racing Proframe RS Mash Helmet

Fox Racing Proframe RS Mash Helmet
  • Color: Bordeaux
  • Color: Black/White
  • Color: Olive Green
Size: Select size
Please select options Unavailable


Lightweight, next-level full-face helmet.

The Proframe RS Mash Helmet takes the lightweight breathability of the Proframe and takes it to the next level of safety and performance. It features the all-new Mips® Integra Split protection system, which combines a dual-density foam - for high and low-speed impacts - and a low friction layer between the two layers designed to reduce rotational forces in a crash that would otherwise be transmitted to the brain.

Designed to meet the needs of all-mountain riders and enduro racers, the increased ventilation and decreased surface contact of the helmet keep you cool on long rides, while the Ionic+ anti-microbial liner and multi-sized cheek pads provide optimized comfort and fit. The updated BOA® fit system offers micro-adjustability providing class-leading fit and security. The chinstrap utilizes a Fidlock® magnetic closure system for easy opening and closing, even with gloves.

The 3-position adjustable visor with lock-down screw is compatible with goggles. Those looking to capture every sweet run will appreciate the removable, under-visor GoPro mount on the Fox Proframe RS mountain bike helmet.

Key Features and Specifications:

- BOA® fit system for class-leading fit and security
- Equipped with Mips® Integra Split low friction layer
- Dual-density foam for high and low-speed impacts
- 3-position adjustable visor compatible with goggles
- Removable under-visor GoPro mount included
- Increased ventilation and decreased surface contact area to improve cooling
- Ionic+ anti-microbial liner to reduce odor
- Multi-sized cheek pads to optimize fit
- Fidlock® magnetic closure system on chin strap

Weight: 820 g (size medium)


ASTM F1952 - DH Certified
ASTM F2032
EN 1078:2012 + A1:2012
AS/NZ 2063-2020
CPSC 1203

How to Dial Your Fit:

- BOA® dial: 52 micro adjustments - counterclockwise to loosen, clockwise to tighten - allows for a precisely dialed fit. Adjust while wearing the helmet.
- Back cradle: four adjustment points move the cradle up or down your head to ensure the best fit possible.
- Cheek pads: two sets of cheek pads are included with the helmet - a preinstalled thin pad set and an optional thick pad set for a more snug fit.

Note: Avoid exposure to aerosol sprays like bug repellent and sunscreens as they can cause your helmet's finish to peel

Materials: EPS, PC, PA, EPP, polyester

Small 20.1-21.7" 51 - 55 20/30 & 30/40 mm 6 3/8-6 7/8" 710±5 g
Medium 21.7-23.2" 55 - 59 20/30 & 30/40 mm 6 7/8-7 3/8" 820±5 g
Large 23.2-24.8" 59 - 63 20/30 & 30/40 mm 7 3/8-7 7/8" 910±5 g

Part Numbers

Option UPC MPN Store SKU
Black/White / Small 191972755408 30915-018-S
Black/White / Medium 191972755415 30915-018-M
Black/White / Large 191972755422 30915-018-L 210000089233
Bordeaux / Small 191972758201 30915-448-S 210000087132
Bordeaux / Medium 191972758218 30915-448-M 210000089235
Bordeaux / Large 191972758225 30915-448-L
Olive Green / Small 191972854521 30915-099-S
Olive Green / Medium 191972854538 30915-099-M 210000089234
Olive Green / Large 191972854545 30915-099-L