Most wheel makers would be quite content having the fastest wire spoked wheel in
the world but with Hed things are different. After an extensive prototyping and
wind tunnel testing Hed was rewarded with the new Hed Stinger 9 Flamme Rouge
Carbon Tubular Rear Bicycle Wheel that not only lowers drag at all angles but
also gives the rim a bigger window of aerodynamic effectiveness. As with the
Stinger 6, Steve Hed has again proven that shape is actually more important than
depth as the Stinger 9 not only outperforms every spoked wheel shallower than
90mm but it also outperforms all the wheels that deeper than 90mm.
During development of the new shape Hed also set out to increase lateral
stiffness, cornering performance, and impact durability. This was done without
affecting the impressively comfortable ride quality.
Looking at the wind tunnel drag data you might notice that the Stinger 9 now has
a stall point of 14 degrees and drag numbers routinely go negative when testing
the 9. So what does this mean to the rider you ask? It means that in light to
medium winds the Stinger not only will give you more speed than any other wheel
out there but will stay fast when other wheels begin to slow down. If youíre in
doubt, check out the Sept 2010 issue of VeloNews Magazine. The Stinger 9 beat
(soundly) the "fastest" wheels from 5 of Hedís competitors.
With the shaping ironed out Hed spent considerable energy focused on the type of
carbon used to make the rim as well as the orientation of the fibers. Balancing
lateral stiffness, vertical compliance, impact resistance, cornering performance
is quite a dance. The result of SCT Tuning efforts is that the Stinger 9 uses
three different types of carbon and a unique layup schedule that produces a
wheel that is 15% stiffer laterally and 10% more impact resistant. This was done
while maintaining vertical compliance and making the rim 25 grams lighter.
Cornering is noticeably improved by the use of the C2 tire well. The C2 tire
well provides more support for the tire when cornering or accelerating out of
the saddle. It is also worth noting that the stability of the wheel in
crosswinds has been improved. This is a side effect of the improved
aerodynamics. Smooth air over the rim produces stability in the wheel. This
means that despite the Stinger 9 have a large amount of surface area in a side
wind it still holds its riding line well because air is flowing smoothly over it
and not buffeting which in indicative of a wheel beyond its stall point.
So where might you see the Stinger 9 wheel in action? Last year Stinger 9's were
used on the professional level to win Ironman races, criteriums, and road races.
As a testament to their durability they were even used in the cobbled classics
of Paris Roubaix and the Tour of Flanders without a single failure. As a rear
wheel they can be used by anyone.
CycleOps PowerTap G3C:
Introducing the new PowerTap G3C; The lightest power meter in the world
World's lightest power
Ceramic bearings by
Hub weighs a mere 315
Wider flanges for a
stiffer overall wheel
Smaller overall hub
ANT+ compatible for use
with CycleOps Joule or your favorite computer
C2 platform tubular rim
24 rear silver bladed
Sapim CX-Ray bladed
Carbon FR Sonic hub
Rear hub grease port
with aluminum port cap
Titanium Skewer and
valve extender included
Rider weight limit