Fox has introduced its new Rampage RS full-face helmet, claiming it's the first pro-level downhill helmet to feature the MIPS Integra Split system, in addition to 5% improved aerodynamics and a 0.25kg lighter weight than its predecessor.
Integra Split is a different system from the standard MIPS used on the 2021 Rampage.
The new Fox Rampage RS has already won seven World Cup downhill races upon the heads of Jackson Goldstone, Tahnée Seagrave and Nina Hoffmann.
Health and safety
MIPS Integra Split, is claimed to be safer thanks to an improved combination of energy absorption and reduced friction offered by multiple, moveable layers designed to redirect rotational motion from angled impacts.
The system is integrated into the Rampage RS’ energy-absorbing liner. It is separated into three parts, anchored by flexible fixings and running on a low-friction surface between the movable layers.
Interestingly, Fox doesn’t list ASTM F1952 (the leading downhill helmet test standard) as the highest rating for the Rampage RS. Instead, it explains that it meets a combination of the ebike certification (NTA-8876) and even the European helmet safety standard for motorcyclists (ECE 22.06), although this standard is specific to the chin bar.
Fox says this is because NTA-8876 is more challenging to achieve than the downhill MTB test: it tests impacts to the crown of the helmet at a higher speed and a lower failure threshold than the standard specification for helmets used for downhill mountain biking (ASTM F1952).
The brand also claims the new Rampage RS passes the motorcycle helmet chin bar test, ECE 22.06. This tests the chin-bar impact at a higher speed and uses different failure criteria than ASTM F1952, measuring G-force rather than deflection.
The removable and washable Ionic+ liner and cheek pads mean it should be easy to keep the Rampage RS fresh and healthy.
Racer's edge
Fox claims the Rampage RS is 250g lighter and 5% more aerodynamic than the previous Rampage helmet.
The weight of the helmet at the highest point on the rider’s body is significant, and less weight also means the rider has to use less exertion to keep their head in place while riding.
Aerodynamics is increasingly playing a part in modern downhill racing, with racers’ kit becoming tighter and more form-fitting. Last year, Fox introduced its two-piece SpeedSuit.
It’s not a surprise, therefore, to hear Fox hyping the aero credentials of its new helmet, although as yet it hasn’t released any specific wind-tunnel data to back up these claims.
The RS acronym stands for ‘Race Spec’ in Fox Racing’s nomenclature and refers to the extensive list of features and ventilation.
These features include a lightweight carbon fibre shell construction and two-position visor for GoPro compatibility. The Rampage RS also includes a thicker liner and cheek pads to fine-tune your fit, extra hardware and a premium carrying case.
It will be available in two colours, but Fox has not yet provided details of these.
Winning pedigree
All that crash protection will be a relief to top athletes using the Rampage RS as they seek to go faster than ever.
Fox-sponsored athletes have had access to the Rampage RS since the start of this season, and Jackson Goldstone, Tahnée Seagrave and Nina Hoffmann have already racked up a combined seven World Cup DH victories in the helmet.
Seagrave won in Bielsko-Biala and Pal Arinsal, with Hoffmann winning in La Thuile, and Goldstone taking an impressive four wins on the bounce in Loudenvielle, Leogang, Val Di Sole and La Thuile.
However, if you want one, you may have to get saving because the Fox Rampage RS has an RRP of £549.99 / $699.95 / €599.
