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Photo ©:
Ben Atkins
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The Norse God's mighty hammer strikes again
By Ben Atkins in Brest, France
One of the ways Shimano
has lightened its new groupset
Photo ©: Ben Atkins
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Look has traditionally
made its frames
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Despite looking slender
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Like many in the peloton
now
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The down tube is the largest
on the bike
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In contrast the top tube
is slender
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The chain stays are profiled
for rear end stiffness
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Maillot vert favourite Thor Hushovd (Crédit Agricole) is off
to a great start in this year's Tour de France with only two stages
down and one win already under his belt. Stage two concluded with a
tough uphill finish into the town of Saint Brieuc and Hushovd launched
himself with 200 meters to go, holding off top sprinters Kim Kirchen
and Gerald Ciolek (Team Columbia), Robbie Hunter (Barloworld) and never-say-die
veteran Erik Zabel (Milram) in the process. Kirchen's second-place finish
combined with his fourth-place the day before to earn him the maillot
vert at day's end but Hushovd is well within pouncing distance just
eight points behind.
Hushovd surged to the line aboard Look's top-end 595 Pro Team which,
despite its slender appearance, is apparently strong enough to cope
with the huge levels of stress put through it by the Norwegian strongman.
Unlike most of its competitors who use modular monocoque construction,
Look prefers a more traditional tube-and-lug method to join the very
high modulus carbon tubes to the forged high modulus carbon lugs along
with carbon nanotube-enhanced resins for better carbon layer adhesion
and improved durability.
Naturally, the main tubes are shaped and curved to cope with the different
stresses they are put under: the top tube is very flat and wide for
lateral stiffness but also slightly curved for a little vertical compliance
while the down tube and seat tube become flared and rectangular as they
get closer to the bottom bracket for better drivetrain rigidity.
In addition, the bottom bracket lug also provides an oversized bonding
point for the relatively slender chain stays which start out rectangular,
turn triangular where they pass the spokes, then finish oval at the
compressed carbon dropouts. The wishbone-style seat stays are similarly
delicate looking - although not so much as some.
Hushovd's frame isn't just stiff, though; it's also quite light with
a claimed weight of just 1040g for a small-sized version. This by no
means makes the 595 the lightest in the peloton, but it's hardly a heavyweight
either - Hushovd's size large will be a little heavier than this of
course, but not by all that much.
The 595 employs an integrated seatmast design as with many frames in
the peloton, but in this case it's topped with Look's unique E-post.
The E-Post gets inserted into the frame - instead of clamped
around it - and is also partially isolated from road shock with vibration-damping
elastomer inserts; Hushovd prefers the medium density red ones.
At the front end of the bike, Look's own full-carbon HSC6 fork fits
into the tapered head tube. As is becoming increasingly common, the
steerer tube widens from 1 1/8" at the clamp to 1 1/4" at the crown
for increased stiffness. The Head Fit system borrowed from Look's new
586 drops about 40g and also allows stem repositioning without affecting
the headset adjustment.
Hushovd received a significant componentry upgrade this year in Shimano's
new Dura-Ace 7900 groupset which sheds about 180g and promises better
shifting robustness courtesy of a new cable pull ratio. The STI Dual
Control lever bear a more ergonomic shape with concealed shifter cables,
the new crankset is claimed to be both lighter and stiffer than previous
iterations, and brake power and modulation are apparently improved with
the new hollowed-out design. One of the most striking features, though,
is the new two-tone gunmetal-and-polished finish.
Most of the rest of Hushovd's set-up - like the bikes of many Shimano
sponsored teams - is built with components from the Japanese company
or its subsidiaries. The light, fast and stiff Dura-Ace 7850-C50 wheels
use 50mm-deep carbon tubular rims to keep Hushovd pointing in the direction
of the finish line when he turns on his afterburners. Rubber comes from
Continental in the form of a pair of matching 22mm Competition Pro Limited
Allround tubulars.
As a big star of the peloton, Thor Hushovd has his own range of monogrammed
components which includes a matching Vibe 7S bar and stem set from PRO.
Being a big six-footer, he needs a 140mm version of the stem to hold
the 44cm-wide bars in position. Wrapping those bars is Bike Ribbon tape
in brilliant white to match the rest of the bike and the Team Edition
Flite from Selle Italia.
Completing the bike is a pair of Tacx' Tao Carbon bottle cages. Hushovd
has no computer on his bars as the only indicator of speed he needs
is whether he's going faster than everybody else!
With no prologue - which he won in 2006 - and no time bonuses it's
unlikely that he'll see yellow this year but he'll likely see green
at some point or other in the next few weeks. If all goes according
to plan, though, the only time it will really matter to him is on the
last day after arriving in Paris.
PhotographyFor a thumbnail gallery of these images, click here
Images by
Ben Atkins/Cyclingnews.com
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