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Cycling News
Product Review: Continental Grand Prix 4000 Road Tires
By Corey Whalen
Dec 7, 2005, 06:16
The Continental Grand
Prix 4000, successor to the GP 3000, road tire is a clincher weighing in at a
scant 205
grams a piece.
With a maximum riding pressure at 120psi and a recommended running
pressure of 110-115psi the GP 4000 has very little rolling resistance. The GP 4000 comes in a variety of
Xserallic colors that were developed by Merck. Some of the colors include yellow,
black, metallic blue/black, blue/black, red/black, and silver/black. Along with the new colors the tires have
an anti-aging compound that helps prolong usability time frames.
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| Photo copyright Roadcycling.com. |
The GP 4000’s are made
with Vectron, which is a Continental exclusive making it the first racing tire
to use the technology. Vectron, a
liquid crystal polymer made from polyester rather than nylon making the tires
have less flex fatigue, a more positive rolling resistance, and less likely to
get flats. Vectron fibers are being
seen in more sporting products due to the strength to weight. Some of the sports that are using such
technology are competition yachts and paragliders. Vectron fibers have also been used by
NASA for space mission airbags and tow ropes. As for cycling Vectron make the
Continental GP 4000 tires very light and very strong.
When I first saw and
felt the GP 4000 tires they looked and felt as if someone had dunked them into a
lubricant. They were silky to the
touch. I began to wonder how they
would perform in cornering and wet conditions since they felt so “greasy”. So I mounted them up on a set of wheels
I use mostly for all terrain.
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| Continental GP 4000 road tires. Photo copyright Roadcycling.com. |
They were very easy to
mount on the wheels. Little to no
pre-stretching of the tire was needed.
They slid right onto the rim.
I then took the pressure in each tire to 120psi. The tires were solid and
more than capable of fast rides at first glance. I then took them
outdoors.
They responded on the
dirt road that I rode to the pavement with great success. They did not even flinch over uneven
terrain. Once on the road they were
smooth as glass. Each and every
movement around corners was precise and stable. Wet weather soon came, and I found
myself on roads covered in rain.
The GP 4000’s were great in the wet weather. They cornered confidently due to the
minor tread grooving on the edges of the tires. I was very happy. So, I finally got
brave enough to try them in the mountains.
As always, I had to
start on some pretty steep hills of up to 9% grade before descending. The GP 4000’s climbed as smoothly as
they rode on flat terrain. They
were smooth and very responsive in traction out of the saddle as well as
in-the-saddle climbing. While
climbing I even made the mistake every road cyclist knows not to do, ride
through broken glass. I stopped
before continuing my ride up the mountain to check the tires for cuts and glass
embedded into the tire. There
wasn’t even a cut. There wasn’t
even as much as a scuff from rocks.
So I continued climbing.
Upon reaching the top
summit of the pass, I immediately turned up the screws. I soon found myself going a little too
hot into a corner thinking I was going to go down. The GP 4000 tires stuck to the ground
and kept on going without any hopping or sliding. I was ecstatic! I finally found some tires that I could
continue to purchase for racing and training alike. They were so nimble and reliable in
cornering at high speeds that I would definitely recommend them to any climber
or Criterium rider that needs a stable tire at high
speeds.
Overall, I would
definitely recommend and ride the Continental Grand Prix 4000 series of
tire. They performed perfectly in
every condition I put them through with hardly any signs of wear and no cuts,
scuffs, or chunks taken out of them.
All in all I would say Continental has a winner for quite awhile to
come.
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