But are outrageously thin at 144g! In our roller testing ~5w faster than Corsa Speeds at 45kph for a pair of wheels, when coupled with Vittoria latex inners. We also did indoor velodrome testing last week which corroborated these results, using one of our AEOX Titans (100mm deep) as a test wheel.
impressive!
I always loved Veloflex tubulars. Will pick some of these up.
Also not tubeless compatible - maybe they are so thin that sealant wouldn’t have a good shot of sealing small punctures anyways, but that does slightly alter the risk/reward calculation in running a tire that one would think (based on weight and thickness alone) would be very fragile.
At that weight, the Vittoria Pista Speed, not the Corsa Speed, is probably the fair comparison.
I could hardly get out of my driveway on the Corsa Speeds without getting a flat! Those Veloflexes might not make it out of my garage!
Vittoria doesn’t have a pista speed clincher, unfortunately.
Vittoria doesn’t have a pista speed clincher, unfortunately.
But kinda of makes sense as you wouldn’t want to run a clincher at wood track pressure.
The use-case for ~145g tires clinchers is pretty narrow. Asphalt/concrete tracks and really pristine TT courses. I still mostly run tubular on non-wood tracks just for the safety aspect.
I’m pretty daring, but Corsa Speed is about my personal limit for amateur TT courses.
I could hardly get out of my driveway on the Corsa Speeds without getting a flat! Those Veloflexes might not make it out of my garage!
Are you referring to the original (G1.0) or current (G2.0) versions? If the former, I had similar experiences. But I’ve found the current G2.0 version to be much more durable. I’m not saying it’s a Gatorskin, but a marked improvement over the G1.0.
I’m pretty daring, but Corsa Speed is about my personal limit for amateur TT courses.
I’m going to give them a go and see how they workout for me. I do have pretty pristine roads and I had zero flats on my Corsa Speeds. But it might be an expensive experiment that doesn’t workout for me.
Vittoria doesn’t have a pista speed clincher, unfortunately.
But kinda of makes sense as you wouldn’t want to run a clincher at wood track pressure.
The use-case for ~145g tires clinchers is pretty narrow. Asphalt/concrete tracks and really pristine TT courses. I still mostly run tubular on non-wood tracks just for the safety aspect.
I’m pretty daring, but Corsa Speed is about my personal limit for amateur TT courses.
True, as it would blow off the rim, which would be very very bad. But this on is starting to touch the Corsa Speed Pista (SWAG). At a 125-30 psi it might be just as fast or faster due to lack of hysteresis.
Since you did some on track testing, how was the CdA+Crr? 5 watts of Crr is a whole lot to overcome with CdA from another choice.
I’m going to give them a go and see how they workout for me. I do have pretty pristine roads and I had zero flats on my Corsa Speeds. But it might be an expensive experiment that doesn’t workout for me.
Let us know how it goes because 5W is Real Watts ™.
Let us know how it goes because 5W is Real Watts ™.
yeah, will do! it was crazy when I saw that…I was on the road when I saw the results, but as soon as I got back in front of my Mac I order a pair up. Again, pricey at €99 shipped, but I’d pay that all day for 5W if I can get some miles out of them. That being said, if they do well for me I might not be the best test case as “delicate” tires fair pretty well under me. Conversely, if they don’t make it out of the driveway it’s bound to be a tire that no one should ride. 
Also not tubeless compatible - maybe they are so thin that sealant wouldn’t have a good shot of sealing small punctures anyways
At 144g it would be difficult for the tire to have adequately-low sidewall porosity to contain sealant in the first place, or be stiff enough about the beads for tubeless seating to be both safe and practical.
Also not tubeless compatible - maybe they are so thin that sealant wouldn’t have a good shot of sealing small punctures anyways, but that does slightly alter the risk/reward calculation in running a tire that one would think (based on weight and thickness alone) would be very fragile.
It’s definitely not clear cut, Corsa Speeds might be the better option but we’ve got a race this weekend (national closed circuit/motor circuit TT champs) and 3 of our team will be on Records for that, so we’ll get an idea of how they perform on a nice surface at least.
At that weight, the Vittoria Pista Speed, not the Corsa Speed, is probably the fair comparison.
I should probably do the Pista clincher (they don’t do a Pista Speed clincher but the normal Pista has graphene etc.), they’re what I use for training on the track and it’s a similar construction!
Let us know how it goes because 5W is Real Watts ™.
yeah, will do! it was crazy when I saw that…I was on the road when I saw the results, but as soon as I got back in front of my Mac I order a pair up. Again, pricey at €99 shipped, but I’d pay that all day for 5W if I can get some miles out of them. That being said, if they do well for me I might not be the best test case as “delicate” tires fair pretty well under me. Conversely, if they don’t make it out of the driveway it’s bound to be a tire that no one should ride.
Uh. where are you seeing 99 eur shipped, unless you’re talking for the pair.
Since you did some on track testing, how was the CdA+Crr? 5 watts of Crr is a whole lot to overcome with CdA from another choice.
Yes definitely - on our Titan, the CdA for 23mm Record is almost identical to the 23mm Corsa Speed.
Maybe it’s just me, but I’m not sure a pair remains available from Veloflex. The website will allow me to place one in the shopping cart, but when I try to update to two tires, I get the message “The requested qty is not available”
I could hardly get out of my driveway on the Corsa Speeds without getting a flat! Those Veloflexes might not make it out of my garage!
Are you referring to the original (G1.0) or current (G2.0) versions? If the former, I had similar experiences. But I’ve found the current G2.0 version to be much more durable. I’m not saying it’s a Gatorskin, but a marked improvement over the G1.0.
1.0. Fastest flat I’ve ever had on a new tire (I think a quarter of a mile?) and particularly discouraging given how smooth and clean the roads are in my community. At IMFL I was a SAG driver and helped a number of people fix flats. First… I’m amazed at how few people know how to change a tube/tire. Second, about 50% of the flats I tended to were Corsa Speeds.