Fox Speedframe RS Aura Helmet Mips Bike Helmet - 2026

All trails deserve elite-level, open-face performance

The all-new Speedframe RS Aura Helmet takes the fit, breathability, and performance of the much-loved Speedframe and elevates it to the next level of safety and performance. Featuring the all-new and exclusive Mips® Integra Split protection system, which combines an impact-savvy, dual-density foam layer and a low friction layer between the two, to reduce rotational forces in a crash that would otherwise be transmitted to the brain. In addition to this added level of safety and performance, you'll find the BOA® Fit System, 3-position visor, FIDLOCK closure system, and - new for Speedframe - sunglass holder ports.

• Features Mips® Integra Split Dual Density Protection System
• BOA® Fit system for micro-adjustability
• FIDLOCK SNAP helmet buckle provides quick and secure entry and exit while wearing gloves
• Removable, washable Ionic+® liner is antimicrobial and manages odor while wicking moisture away from the head
• Optimized venting with channeled, in-molded EPS provides efficient cooling
• One hand adjustable visor is compatible with sunglasses and goggles
• Sunglass specific storage solution
• Meets the NTA-8776 E-bike helmet certification standard

• Sizes: small, medium, and large (see size guide for measurements)

• Size	Head Size	Hat Size	Weight
  S	20.1-21.7"	6 3/8-6 7/8"	370±37 g
  M	21.7-23.2"	6 7/8-7 3/8"	400±40 g
  L	23.2-24.8"	7 3/8-7 7/8"	440±44 g

How to Dial Your Fit

• BOA® Fit System - counterclockwise to loosen, clockwise to tighten - allows for a precisely dialed fit. Adjust while wearing the helmet
• Back cradle: four points of adjustment move the cradle up or down your head to ensure the best fit possible