Continental Ultra Sport III - Road Bike Tire | Versatile Road Tire with Modern Tread Design - E25 Ebike Rated - PureGrip

These tires are an absolute bargain and perform well above the competition at this price point. Grip is outstanding, they are super comfortable on the road, soaking up any high frequency road chatter as well as bigger bumps, install fairly easily and last a very long time (about 5k miles on the rear wheel for me, but I am light so mileage may vary). According to tests they have a higher rolling resistance than many pure racing tires (like the Continental GP5000 for example) and they do not have a puncture protection layer, but I don't feel that these slow me down at all, and I only had 1 puncture in almost 6000 miles. In my experience, I do not find tires with built in puncture protection are any less prone to punctures. Usually, if something punctures my tire, it does so regardless of a puncture protection layer and the puncture protection generally has a negative effect on overall tire comfort as it make the casing stiffer and less flexible. These tire are not labeled for tubeless use and I have only used them with TPU tubes but the next time a replace them I will try to see if they will run tubeless. Either way, these are outstanding tires for everyday use and the value can't be beat.

Excellent replacement road bike tire for my Cannondale R500. Had a very old Bontrager tire that I wanted to replace but did not want to break the bank, so I gave this tire a try. Fairly easy to install and ride quality has been solid. I've rode approximately 600 miles on it and have had no issues and no punctures.

Have been riding on these tires for over 2 months, averaging 40 miles per week. They replaced Continental 4-Season tires, which I enjoyed for 2-3 years, until they began to fray. These tires thus far have been comparable, at a lower price point. But I had them installed at a bike shop, they do not appear easy to install, which charged me $10 per tire.

I'll start with my conclusion and then you can read the detailed explanation below if you want more info. These tires are slow. However, they are inexpensive. If you value cost over speed, get them. If speed is more important, find another tire. I have waited more than 2 years to write my review of these tires as I was trying to gather empirical data to prove out if these tires were responsible for making me slow, or if it was just old age catching up to me. Things to note for the following review: I am not a racer, but I like to go fast on my rides and compete against myself on routes and segments. I track lots of data for my rides, including power, heart rate, temperature, etc. I was very skeptical about expensive tires. I had been riding Gran Prix 4000s which were a highly regarded tire that wasn't too expensive. I was happy with them. The new line of Gran Prix 5000s that replaced them have pushed the price beyond the limit of what I am willing to spend on a tire, so when my GP4000s wore out I went looking for something else. The price on these Ultra Sport IIIs was too good to pass up. Test data I found online indicated they wasted a few Watts compared to the GP line. I figured that was splitting hairs and I wouldn't notice them, so I ordered them. I was immediately slower on one of my regular routes. Like .8 to 1MPH slower on average. (18MPH average instead of the 19MPH I would previously average on a hard effort on this route). Unfortunately, I changed too many variables at once, so I couldn't say which or which combination of changes were responsible for the slowness. In addition to changing tires, I also went up from 25mm to 28mm. The 28s didn't fit on my bike with my 50mm carbon wheels, however, so I had to ride them on basic aluminum non-deep section aluminum wheels. So that's 3 different equipment variables right there. It was also only one ride, so maybe wind and weather were a factor. I needed to do more testing! I ordered some 25mm tires instead and continued my testing going back to my carbon wheels. I rode the same 21 mile route multiple times recording the power and speed and started plotting the points on a graph. I could draw a trendline between the points and confirmed that speed for a given average power over this route was much slower compared to historical data with the GP4000s. I have more than 30 rides worth of data for this. I was starting to suspect the rear hub in my wheels might have been degrading, so I first replaced the bearings in it and then replaced the entire hub. Both of those changes did make incremental improvements in the speed vs. power chart, but it still left a gap to where the GP4000s were of about .1 to .5 MPH in average speed for a given average power. From that, I conclude that these tires are noticeably slower than GP4000s. There were more experiments I wanted to do, like compare with a set of 25mm GP5000s that I was gifted, but I ended up getting a new bike so that never got done. My new bike came with cheap wheels and tires and is also slower in terms of speed vs. power than my old bike with the GP4000s, so I need to do some experimenting there. They have closed a bridge for replacement on the route I used, so I can't get more comparison data until it re-opens :(

I have now used these in the 700x28C clincher format for more than a year now. Have done about 4,000 kms on them so far. I am astonished by the quality of these tires. Not a single puncture till date. I live in Bangalore, India and anyone who lives here or has visited knows the pathetic condition of our roads. They are riddled with large potholes, sudden road cracks/ruts, small stones, broken glass, pits and uneven strips. Despite all this, these tires have never let me down with a puncture. My usual rides are about 50kms long with about 500 meters of elevation gain on these roads and while the rolling resistance is acceptably good keeping in mind the puncture protection, I can do with more comfort. But still very happy with my pruchase despite paying double the price due to international shipping costs.

Good tire so far. I did get a few cuts from running over glass, but they did not penetrate all the way through.

The installation on the rim was a little tricky. But once the tire bead was set, the wheel tire were perfect.

It is of course difficult tell how this will perform over the coming years, but the fit was good, quality appeared good, ride is smooth, and tread is generous for a "racing" tire. So far, so happy. I do get an ironic smirk from Amazon asking about ease of install and durability. 1) its a bike tire and 2) we shall see in 5 years

Parfait ,pas de crevaison jusqu'à l usure.. vraiment content de ce produit

Ruedan muy bien, con buen agarre tanto en rectas como en curvas y una sensación de rodadura rápida y estable. Se nota la calidad Continental. Perfectos para entrenamientos y salidas habituales. Excelente relación calidad-precio, totalmente recomendables.

Ottimo copertoncino da 28mm Con la giusta pressione, assorbe molto bene le asperita' della strada.

These are supposed to be entry training tires. I don't think they are good to be used with trainers though, the compound is balanced too much towards grip than wear resistance.

Har uppgraderat fälgarna på min landsvägshoj och gått upp i bredd på däcken. Hojen går lika snabbt än tidigare om inte snabbare men komforten är bättre. Bra grepp även när det varit lite blött på vägarna.