Continental Grand Prix 4000S Road Tyre
Continental Grand Prix 4000S Road Tyre
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|Black||700 x 23mm||
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|Black||700 x 25mm|
The Continental Grand Prix series of racing clinchers is the top choice of serious race bike specialists all over the world, and has been for many years. The latest incarnation is the Grand Prix 4000S.
Top Features of the Continental Grand Prix 4000S Road Tyre
- GP4000 tyre with new BlackChili compound
- BlackChili gives a lower rolling resistance and higher grip
- An ideal secret weapon for the seasons main objective
- All black
- Striking silver sidewall logo
- Recommended pressure: 110psi
- Maximum pressure: 120psi
- Weight: 205g (23c), 230g (25c)
|Puncture Protection:||Vectran Breaker|
|Threads Per Inch:||330|
|Wheel Size:||700c (622)|
The Continental Grand Prix series of racing clinchers is the top choice of serious race bike specialists all over the world, and has been for many years. The latest incarnation is the Grand Prix 4000S. S stands for sport, special and “schwarz“ – the german term for black.
The all black Grand Prix 4000 S catches the eye with its big silver labels. It matches every high-end race bike perfectly and can do more than just look good.
The Black Chili Compound reduces rolling resistance by 26%, grip is increased by 30% and mileage is increased by 5%.
How are these figures possible..? The carbon filler particles within the rubber compound are reduced to 1/10th of the size of standard carbon particles. This creates a closer knit with the particles having more points of contact with each other, thus forming a tighter bond, (increasing mileage performance) and also with the road (increasing grip). Also the way in which the particles interact with each other has a dramatic effect on reducing rolling resistance. Black Chili is used by several ProTour and Continental teams.
The all new Vectran breaker belt, developed and patented by Continental, surpasses even the famous puncture resistance of the former leader in this category, the GP3000. The extremely strong Vectran fabrics are more flexible and lighter than all other puncture protection materials. Vectran offers more resistance to cuts than Aramid, is five times as strong as steel and features less weight than a nylon double breaker. It also maintains strength in the wet.
About the Continental brand
More than 100 years experience in the development and production of bicycle tyres has made Continental a unique company within the industry. Continental is the only German bicycle tyre manufacturer to produce its tyres in Germany. Knowing this serves as a mighty incentive to our engineers and everyone else involved in the manufacturing process to constantly strive for further innovations. In our technology and development center in Korbach, we are constantly developing new revolutionary technologies such as the unbeatable Black Chili Compound and the ultimate Vectran™ Breaker anti-puncture technology, both used at the top end of race sport. These technologies demand sophisticated processes to ensure our legendary end-product quality, and these innovations as well as the new “ProTection” and ”RaceSport” technology for MTB tyres, can only be manufactured in our factory in Germany – “Handmade in Germany”. In order to offer the best tyre for any application, we rely equally on dialogue with our professional racers, hobby cyclists and everyday bike riders. This results not only in high-end products for top sports applications such as the new Podium TT or the revolutionary downhill tyre “Der Kaiser”, but also tyres for everyday use like the new innovative combination EcoContact/EcoContact Plus as a companion to the latest e-bike trend. As a global player, Continental also maintains high-tech production facilities outside of Germany, where Continental tyres are produced for you with an equal degree of care and dedication. One thing all Continental bicycle tyres have in common is that they are developed in the technology center in Korbach, Germany, where they also undergo strict inspection. Our heart and soul is behind the phrase “Handmade in Germany”, with all of its products and technologies.
|Continental Racing Bike Tyre Chart|
Attack & Force
|700 x 18C||18-622|
|700 x 23C||23-622|
|700 x 25C||25-622|
|700 x 28C||28-622||28 x 1 5/8 x 1 1/8|
|700 x 32C||32-622||28 x 1 5/8 x 1 1/4|
|700 x 35C||37-622||28 x 1 5/8 x 1 3/8|
|700 x 47C||47-622|
|This is a generic size guide not all tyres will come in the sizes shown.|
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Magazine reviews for Continental Grand Prix 4000S Road Tyre
Review from Bikeradar
Stickier, longer-lasting, decreased rolling resistance...
It's just what you want from a tyre, and Continental's new Black Chili compound in their GP4000 Special delivers with the use of nano-technology. The tiny particles have more points of contact with the road surface for better grip, while at the same time reducing wear because of being so tightly knitted to each other. Reduced rolling resistance comes courtesy of the extra flexibility of the material. With a Vectran breaker belt to help reduce punctures, is this the future of tyres?
Tech-laden tyres that deliver in all departments
Product Q & A
Ask your questions and share your answers.
The circumference of a 23mm is 2122mm and that of a 25mm is 2133mm according to the packaging. This in mathematical terms is an increase of 1.75mm on the radius and a benefit of .5% per pedalling revolution. Take into account the extra weight of a 25mm and the marginal wind resistance and that benefit evaporates.
The recommended pressure of a 23 is 110 PSI and that of a 25 95 PSI. Both maximum pressures are 120 PSI. I still pump the 25mm at 110 PSI and therefore see only see a marginal improvement in comfort, although this could just be in my head.
The clearance between the tyre and the top of the brake caliper is very close to zero on my training bike and it is difficult to get past the brake pads when removing and inserting the wheel due to its extra width. I pushed the tyre through the caliper once with a bit of force but the second time I just deflated the tyre and reinflated it since I was at home. The wheel that normally gets taken off is the front, so only 23mm for me there.
If your frame has tight clearances it would be recommended to run a search against the frame / tyre combination or just buy one as an experiment. This applies to all 25mm tyre upgrades.
Hope this helps and happy pedalling :)
23mm will be factionally lighter (25g lighter per tyre quoted) meaning better acceleration and climbing, and slightly narrower meaning marginally less wind resistance. I have also heard they are slightly more agile tyres although cant comment on this myself.
25mm tyres have fractionally less rolling resistance, can be more comfortable as you can run slightly lower pressures without pinch flats (although the recommended tyre pressure is the same for both at 110psi). Should have slightly more traction due to larger contact patch also.
We are talking fractions though, I don't really think you can go to wrong wither way. The only slight issue could be frame clearance if its a particularly tight fit. The tyre will the both slightly wider and slightly taller.
For what its worth I went with the 23's as for me I wanted slightly less weight and I wasn't worried about any comfort factors as its never been an issue.
However as your after stability 25's might be a better option due to larger contact patch, or you could do as some do and hedge your bets, have 23 up front and 25 on the back =) Which is a good compromise but you need two spare tyres
For me, 25 is the best - I wish I could have 25 in front as well.
Try a pair of Conti GP 4000s 25mm and you will see. Be sure to lower the tire pressure to take advantage of the slightly higher volume of the larger tire.
Make sure you check that your bike set up can take a 25mm.
Most of the peloton is using 25MM nowdays.
Plus it keeps you out of the cracks on the road.
It retails for a about AUD40 in Oz from Wiggle and I did 4000Ks. That equates to 1 cent per kilometre on the rear. The front is still going strong. The ratio is pretty good for a premium tyre.
Remember, it's always a long walk in ballet shoes.
Tyres come with a very handy "Tread Wear Indicator", so you can see when you need to change them over.
9 cuts clearly exposing the vectran layer, another 6 deep ones that must have been close. Side walls untouched.
My jaw literally dropped in both fright and amazement.
I didn't puncture once. This is the only tyre I'll ride on again.
Does anyone have any experience of this issue?
That said I replaced the destroyed tyre and tube with exactly the same (after a 5k barefoot walk home) and rode 75kn today no problems. Have been using 4000s tyre sand continental tubes for ages and this is the only problem I've had. I think there the best value andquality tyre ont he market at present
These feel safe at speed. We used them in the Pyrenees last year. Back home I have just had I side wall puncture but this was going up hill and probably due to glass. The other member of our group have had few or no punctures over about 1000miles so far.
I have one bike with these the other with Gators, I notice the difference although one bike is carbon and the other aluminium...so not sure if the bike has more of a difference.
Less punctures with Gators for sure, if its for the commute, Gators all the way.
However, I reckon they corner really well so you might gain a bit there.
These are a normal clincher tyre requiring an inner tube.
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