WHAT IS IT? Leatt sprung into the American
motocross market with its innovative neck brace. Given
that the neck brace was a protective device, it was only
natural for Leatt to expand its line to include gloves, kidney belts, shoulder pads, knee braces and the Leatt
GPX 6. 5 helmet. The GPX 6. 5 is something new to the
WHAT’S IT COST? $599.00 (carbon fiber GPX 6. 5),
$449.00 (GPX 5. 5), $499.00 (carbon fiber GPX 6. 5 youth
www.leatt.com or (800) 691-3314.
WHAT STANDS OUT? Here’s a list of things that
stand out with the Leatt GPX 6. 5 helmet.
(1) Motivation. Every motocross racer owes 6D a big
thank you for jump-starting a new era in helmet safety.
After decades of stagnation in helmet design, the last
three years have seen an explosion in new ideas about
how to protect a racer’s head. The Leatt GPX 6. 5 is a
part of a movement that has resulted in showrooms full
of 6D ATR-1s, Bell Flexs, Troy Lee SE4s, Fly F2 Carbons
and all manner of MIPS-equipped headwear.
( 2) 360 Turbines. Underneath the Leatt GPX 6. 5
helmet liner are 11 donut-shaped turbines (so called
because they look like the business end of a jet engine).
The Leatt’s turbines are made out of a material called
Armourgel, a gel-like material that is soft to absorb mild
impacts but gets firmer in response to hard blows. The
11 turbines fit between the helmet’s foam liner and
the rider’s skull. They create precious space for free
movement that reduces both rotational acceleration
and head impact during a crash.
( 3) Shell. The shell of the Leatt helmet is smaller than
that of most comparable helmets. It looks like a youth
helmet when compared to a typical helmet. Leatt’s
justification for the smaller shell is that it reduces the
leverage of the outer arc of the shell on the rider’s neck.
The smaller shell also reduces the curve of the helmet
so it will be more likely to slide when it hits the ground.
This obviously means that Leatt had to compromise on
the thickness of the foam between the rider’s head and
the outer shell. To compensate for the reduced foam
thickness, Leatt incorporated an inner foam liner
that consists of cone-like structures of less-dense,
compressible cones that work much like the crumple
zones on a car. MXA is familiar with the “cone-head”
foam liner because it was invented by an Australian
physicist named Don Morgan almost a decade ago
(and has been used by Kali helmets since 2010). This
is a unique use of dual-density foam construction.
Additionally, the helmet’s foam is poured directly into the
shell instead of stuck in later.
( 4) Attachments. Some neck brace users complain
about not being able to tilt their heads back far enough.
The Leatt GPX 6. 5 is made to integrate with the Leatt
neck brace. The rear clearance was designed for optimal
range of motion. As an added touch, on the left side of
the helmet is a built-in slot to mount the Leatt hydration
pack’s feeder tube.
( 5) Performance. The carbon fiber GPX 6. 5 helmet
hits the scales at just under 3 pounds. There are 11
large vent holes to allow for ample airflow—although
four of the vents were so large that MXA test riders
got dirt in their hair. The fit of the helmet was a bit
odd at first, but, as we rode with it, it took a much more
( 6) Options. The GPX helmet comes in both adult
(extra small to extra-extra large) and youth (medium
and large) sizes.
WHAT’S THE SQUAWK? We had three quibbles with
the Leatt GPX 6. 5 helmet. (1) The vent holes need to be
covered for cold weather and sand tracks. ( 2) The foam
padding on the forehead has a piece of piping that
needs to be pulled down to avoid a pressure point. ( 3)
The top visor adjuster is hard to reach when using your
hands. An Allen key is needed to adjust it.
The Leatt GPX 6. 5 is one of the new generation
of helmets that are integrating innovative
safety technology, light weight and
LEATT GPX 6. 5 CARBON HELMET
MXA TEAM TESTED