I’m also running the Roubaix Pro 25 rear 28 front really like them with pressure up at 100psi I’m 170 lbs.I've had Continental Grand Prix 4-seasons, which are a solid tire.
Now running Specialized Roubaix Pro 25/28
I've heard they wouldn't hydroplane because of the section shape. Supposedly airplane tires won't either, but I can't substantiate that. My incidental experience on a bicycle in rain at speeds over 40 says I haven't hydroplaned, but traction sure is less in the wet.Tire change might not fix skidding--everything I've read has indicated that at bicycle speeds, one cannot hydroplane. Just going too slow. At least on bare pavement, all bets off if you toss in paint, sand, leaves or are off-road.
Maybe the tires are just old...
I've had several Conti 4000 GP's and been quite happy with them. I've read some reviews complaining about punctures but I just have not had much of a problem with that. I have 25's on one bike, 28's on the other. No complaints, although I think the 25's may be a bit harder to install than the 28's.
I have the hybrid profile, 25 wide/28 tall, so I can run them with lower pressures, at around 80 psi rear and 70 psi front. And, due to working at home, instead of walking around aimlessly at the office, gained some weight and weigh 200 lbs. I forgot my pump one day and ran them even lower without pinch-flat'ing the tubes.I’m also running the Roubaix Pro 25 rear 28 front really like them with pressure up at 100psi I’m 170 lbs.
The coefficient of friction between wet rubber and wet concrete & asphalt is lower than dry conditions.I've heard they wouldn't hydroplane because of the section shape. Supposedly airplane tires won't either, but I can't substantiate that. My incidental experience on a bicycle in rain at speeds over 40 says I haven't hydroplaned, but traction sure is less in the wet.
The rule of thumb for the speed at which an aircraft will hydroplane (in knots) is nine times the square root of the tire pressure (in psi).I've heard they wouldn't hydroplane because of the section shape. Supposedly airplane tires won't either, but I can't substantiate that. My incidental experience on a bicycle in rain at speeds over 40 says I haven't hydroplaned, but traction sure is less in the wet.
Source?The rule of thumb for the speed at which an aircraft will hydroplane (in knots) is nine times the square root of the tire pressure (in psi).
If you're going fast enough on road bike tire to hydroplane you're going at a pretty good clip.
If that's accurate, my sew ups at 144 psi would need about 93 mph. I'm not sure I'm brave enough for that in the wet.The rule of thumb for the speed at which an aircraft will hydroplane (in knots) is nine times the square root of the tire pressure (in psi).
If you're going fast enough on road bike tire to hydroplane you're going at a pretty good clip.