Ernesto Schwein

I've had a set for about a month, I always pump them up to 115 before a ride and at least 50% of the time I get a pinch flat within 20 miles. I hover around 170lbs, I can only surmise that these things are meant for pristine pavement-criteriums and guys under 160. They weren't cheap and I regret not just getting another set of Kyrilion Carbon's, I've never trusted them enough to race on them.

voltman

Maybe it's bad luck?

Ernesto Schwein

I know everyone raves about how "supple" they are. It reminds me a little of the higher end Vittorias, supple=cuts easily, picks up crap off the road and delicate sidewalls. Maybe its the rim, the Reynolds Altas are pretty narrow and have a pronounced bead lip.

yonderboy

I weigh around 200 at racing weight and I ride on ProRace2s. I can't say I've ever pinch flatted them without a previous puncture to lose tire pressure. Yeah, they cut easily, but so does every other tire on the market. They are far from supple; they're hard and grip well.

I actually swapped my rear tire out for a Carbon after I cut through the casing on my last ProRace2. I haven't noticed much of a difference between the Carbon and the old tire.

I run Vittorias Open Corsa Evo LMNOPs on my other bike. I don't like the feel of them as much, but they have way more give than the Michelins. They work for where I ride them, so I can't complain.

Snuffleupagus

I train and race on my P2Rs, and this season my weight has fluctuated between 175ish and 190ish lbs. I've flatted twice over about 6,500 miles. I run 110lbs front/rear, the one time I've gone up to 115 on my Alta Races I flatted for no apparent reason while sitting at the starting line...

I've also pulled off STUPID moves during races where a less sticky tire would have left me with a monster case of road rash following an epic lowside. The P2Rs stick

I think you may just have a bum set.

branman1986

I'm 200lbs and ridden Pro Race 2's for probably like 8000 or so miles and only one flat....last thursday in fact.

ElJamoquio

What color are they?

NomadVW 

I've flatted no more/less on pro2 races, but i definitely prefer the ride they give.

kensuf

I've never gotten a pinch flat on the pro2s. The flats I have gotten were all when the tires had more than 2000 miles on them. Maybe you're just having bad luck?

Oh, and I'm 180 and ride a lot of chip seal and constantly have to navigate around broken beer bottles.

Lithuania

I dont know how many miles ive put on my mine but I have no flats yet. Ive ridden many miles of gravel with them and use the same ones on the trainer

branman1986

Check to see if your pressure gauge on your pump is accurate...also make sure you're not catching the tube between the tire & rim.

StanSeven

Yeah, it's got to be something like that.

Are you sure it's a pinch flat and not something else that is causing the flats? Are you aligning up the hole with the spot on the tire and checking the tire? Often something embedded in the tire is causing flats like a little sliver of metal.

garysol1 

8,000ish miles and never had a pinch flat. I have cut a few down on glass but I cant blame the tire for that.

cslone

195-200lbs here and I ride PR2's excluisively on 3 of my bikes with 2 flats in 2 years.

But if they're light blue, feel free to send them my way. I'll buy them from you.

transplant

https://www.vredesteinusa.com/

ElJamoquio

Dark grey - I'll pay shipping plus a little more for your trouble.

UT_Dude

Dude. You're NOT pinch flatting, unless you're riding the freaking Grand Canyon with these.

You're either

1) Getting the tube stuck between the rim and the tire

2) Not removing something from the tire that's causing the flat

My guess is number 2. Run your hand over the inside casing of the tire when you change tubes. Makes a *BIG* difference.

jfmckenna

Maybe you just have to watch out for those pot holes and road debris

merlinextraligh

I'd agree. If it's not these, you either have terrible luck, or you really hard on your wheels. I ride Pro 2 race, and weigh more than you, and don't recall the last pinch flat.

Learning to be light on the bike will avoid pinch flats, and make your wheels last longer.


Also, just as a diagnostic matter you can tell a pinch flat by the puncture; it's a lmost always 2 small holes, close together, looking like a snake bite.

MDcatV

your experience with mich pr2s is not consistent with mine (3 yrs., +/-70 races, 1 flat - it was a pinch flat). however, I would recommend getting (and I use) the mich k carbons for training. i've found them to be more puncture resistent on the mean streets of suburban wash dc. I use the pr2s as a race day tire on race wheels.

ElJamoquio

People, people. These tires are obviously defective, and should be disposed of by shipping them to Michigan.

UT_Dude

.................

s.peterson

I had a similar problem with mine, but it was not the tire's fault. My wheels had crappy plastic rim strips, and I was getting a slow leak caused by the rim strips. Once the tire was low enough, I would get a pinch flat. I always just replace my tubes, I don't patch them, so I was missing the hole caused by the rim strips. Eventually I patched a tube, and discovered my real problem. New Velox rim strips about 600 miles ago, and no flats since.

Trek_Racer

I really enjoy my ProRace2 and haven't had any problems with them yet. I have almost 1,000 miles on them.

transplant

cleeeeearly