Road Cycling - Conti Grand Prix Supersonic - opinions??

I'm about to order a pair of Grand Prix Supersonic tires (http://www.conti-online.com/generator/www/de/en/continental/bicycle/themes/tires/race/grand_prix_supersonic/grand_prix_supersonic_en.html)... any one with a strong opinion about those?

I have ordered the 23c and will use them in my upcoming 60 miles (100Km) ride..
I am heavy and I like the fact that I could pump em up to 130psi with no worries.. Also the ad talks about low rolling Resistance, which I really like....
Anyone with experience with those tires?

I'm about to order a pair of Grand Prix Supersonic tires (http://www.conti-online.com/generator/www/de/en/continental/bicycle/themes/tires/race/grand_prix_supersonic/grand_prix_supersonic_en.html)... any one with a strong opinion about those?

I have ordered the 23c and will use them in my upcoming 60 miles (100Km) ride..
I am heavy and I like the fact that I could pump em up to 130psi with no worries.. Also the ad talks about low rolling Resistance, which I really like....
Anyone with experience with those tires?

These are really a race only tire as they have no puncture protection at all. They also have a very short lifespan.

If you're a big guy, expect to be disappointed if you buy these.

I have had these tires on my Ksyrium SSC SL's for about 600 miles with NO problems at all. I ride in the NorthEast, so it's not like our roads are pristine or anything (we have potholes that have their OWN potholes). I have used them for both Crit's and road races and also train on them. I am also 170 lbs.

I grabbed these b/c the 145 grams and high PSI was so tempting. I was riding Michelin Lite's prior and the difference was amazing. What I have noticed is that when I am coasting or descending these tires display virtually NO rolling resistance. I can litterally freewheel it for a LONG time if I choose. They also have an amazing grip, even when it's wet out. My riding buddies always comment that my tires are unbelievable and one of the guys finally went out to get his own set because he was so impressed with them.

I too heard horror stories about durability, so I figured they would disintegrate quickly. But I have been pleasantly suprised and now chalk up those saying that they will not last to being people who have never actually RIDDEN on them.

Do I think that they would do well if I rode them through a patch of glass, NO, but then again show me a lightweight tire that will...

I will definitely be getting another set of these once they do finally give out, but from the looks of things that won't be for a while yet *(knocks on wood)

Remember that tire pressure limits aren't the only thing that matter: rims have their own pressure rating that you shouldn't exceed. For example, my Euruses have a limit of 110 PSI for 23 mm tires. If I inflated a tire to 130 PSI, it could have serious consequences on the wheel. You should probably check your rim's pressure limit before getting a tires with such a high pressure.

http://www.roadbikereview.com/Tires/Continental,Grand,Prix,Supersonic/PRD_33187_2489crx.aspx

[QUOTE=mjolnir2k]
I too heard horror stories about durability, so I figured they would disintegrate quickly. But I have been pleasantly suprised and now chalk up those saying that they will not last to being people who have never actually RIDDEN on them.
QUOTE]

Don't get me wrong, these tires have their place and may even work fine as everyday tires as long as you don't mind replacing tires at 1000 miles or less. I just think it's bad advice to tell a self proclaimed "heavy" guy, which on these forums most likely means north of 2 bills, that he's going to be fine on super light tires designed for racing by guys well south of 2 bills. I also would not recommend these to anyone who was planning on doing a tour or in this case a 60 mile ride. Hitting road debris while pace-lining is a fact of life as you can't always see what is in the road ahead of you. Holding up your group for unnecessary flats because you used the wrong tire is just poor form IMO.

I agree that Conti SS's are fast, incredibly light and stick like crazy for a clincher. I'll also say that I basically fried a pair in one week. Three medium length (3-4 hrs) training rides, one 16k TT, one 72 mile road race and two 60 minute criteriums was all it took. They had enough nicks and cuts, a couple almost through the casing, that I tossed them. I've never had to do that with a standard race tire like a Michelin Pro Race which I put 8000+ flat free miles on last season.

Don't get me wrong, these tires have their place and may even work fine as everyday tires as long as you don't mind replacing tires at 1000 miles or less. I just think it's bad advice to tell a self proclaimed "heavy" guy, which on these forums most likely means north of 2 bills, that he's going to be fine on super light tires designed for racing by guys well south of 2 bills. I also would not recommend these to anyone who was planning on doing a tour or in this case a 60 mile ride. Hitting road debris while pace-lining is a fact of life as you can't always see what is in the road ahead of you. Holding up your group for unnecessary flats because you used the wrong tire is just poor form IMO.

I agree that Conti SS's are fast, incredibly light and stick like crazy for a clincher. I'll also say that I basically fried a pair in one week. Three medium length (3-4 hrs) training rides, one 16k TT, one 72 mile road race and two 60 minute criteriums was all it took. They had enough nicks and cuts, a couple almost through the casing, that I tossed them. I've never had to do that with a standard race tire like a Michelin Pro Race which I put 8000+ flat free miles on last season.

I just get the sense that sometimes people make reccomendations on heresay as opposed to actual useage and I thought he might like a real world opinion. As I stated I have 600+ miles on mine and they are still going strong. You indicate (if my math is close) that you had about 350 miles on your set (in one week no less) b/f they were toast.

As with any product, results will vary depending on a million different factors, but I still trust these tires enough to ride in a mass start race, crit or training ride and would reccomend them.

Now he has 2 real world opinions to base his decision on... ;)