Vittoria Corsa

FIFY, since there are numerous Vittoria Corsas.

So you know the OP is running Tubular or Tubular TLR?

Clinchers

Michelin power tt with latex tubes!

So why suggest Speeds since they aren’t Clinchers? If the OP wants foldable Clinchers then Speeds won’t work.

Vittoria Corsa Speeds can be run as clinchers. Have done it for the last four years.

I run a Corsa Speed on the rear (now tubeless, but with a latex tube prior) and a GP 5000 TT front tubeless for sprints, olympics, and halfs.

Yes obviously if you have TLR wheels but the OP wasn’t specific.

No. No TLR wheels needed to run them with tubes.

I don’t know how durable other tires are but GP5000 is pretty fast and durable at the same time. I’m scared of getting a flat. I rather go bit slower but have peace of mind. Some fast tires are durable and strong. I’ve been running GP5000 clincher tires on 4 bikes between mine and gf’s and no issues at all!!

Misread what’s available- Tubular and Tubeless TLR. That makes sense. Misread it as Tubular TLR and my head was spinning.

How are the durability of these? I’m still rocking the pro4 endurance 2 for the durability but have been considering switching.

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My Strava | My Instagram | Summerville, SC | 35-39 AG | 4:41 (70.3), 10:05 (140.6) | 3x70.3, 1x140.6 | Cat 2 Cyclist

I was riding gp5000’s last year and flatted in both an Im and him race which both races took forever to take care of the flat because it fit tight on my wheels. Decided to try Michelin power tt in 2022 and it was much easier to mount and made it through two IM’s and Him with no issues. If you look at the flat protection on bicycling rolling resistance website it doesn’t come close to gp5000 in flat protection. Worked well for me though!

https://www.aero-coach.co.uk/...ling-resistance-data

Vittoria Corsa G2.0 Speed 23 front and a 25 rear.

This combination w/latex tubes beat me in my last TT - it is definitely fast. I was on 5000 TL tubeless w/ 30ml Muc Off sealant, 25mm front and rear.

Completely unscientific, but I've beat this rider in the past.

Rocked this exact tire/tube setup at Kona this year - they were great.

Just one race, but they felt great. Felt fast... which if I'm being honest is a big factor for me (and I'd hazard to say for most people).

I ran the Mich latex setup last year, worked great.

This year training is back to gp5000 latex but race will be the tubeless gp5000 TT limited setup. Supposedly gp5000 aero and also the low crr with it.

There is a new Dan Brigham interview on Scientific Triathlon and he is asked about his road TT tire choice. Michelin TT front with a Corsa Speed on the rear in a staggered 23/25 size was the best balance of aero and Crr. Whether he would switch to the new Conti 5000 TT if he wasn’t sponsored wasn’t discussed.

I know burnthesheep knows this, but to prevent confusion for others following this, the GP5000 TT "limited" is also called the GP5000 TT TdF

I’ve tried 23 and 25 in the same course switching back and forth to see which one is faster in the front. I did this not just one day. Did it for several days to confirm. 25 was definitely faster so I have 25 in the front and 25 in the back. I used GP5000 for this test. You can try for yourself.

I am sure there is a break even point between rolling resistance and air resistance. Brigham was moving at almost 35mph - at that speed air resistance was probably by far the limiting factor, plus the smooth surface allowed for very high air pressure in his tires.

If you ride slower, and/or need to use lower air pressure in your tires, you'll reach a point where 25mm is faster.

My suggestion - don't reach that point - use more power and ride faster!! :)

And beyond that break even, you have all the aero implication specific to each wheel and fork/frame combination.