Have just picked up a 60mm deep Carbon wheelset, TL ready, that I’ll use to race on next season (primarily Triathlons). I’ll mainly be training indoors with only a few outside rides prior to race day (A-Race is IM Hamburg).
Would you go with light/fast tyres that may be more puncture prone e.g Vittoria Corsa G+ 2 TLR or get a tyre that is a more all rounder type so not the lightest/fastest but offers a bit more puncture protection e.g Conti GP5000 TL?
I wouldn’t worry about the difference of those two tires you mentioned. They are both great.
The wattage difference is 1-2 Watt, the weight saving is marginal as well.
Edit: I actually assumed you were referring to the G+ speed. But you might as well play around on the website and choose the one you have.
1 Like
I went initially with a Vittoria Corsa G2 on my disc. I couldn’t get it to seal though with an air tank. So I took it to a lbs with a compressor. They couldn’t get it to seat either, the tyre is just too soft. Bought a 5000 and it seated 1st time with the air tank. I’ve 5000TL on my summer and winter road bike wheels that I fitted relatively easily mid chemo, when my fingers were cold, weak and numb. Fitting would be my decider for future.
1 Like
For everyday riding I use a slightly heavier tire (Schwalbe Pro One 1 Gen) with great success (5k kilometers without flatting once).
On my tri bike I run the Vittoria Corsa - certainly better when it comes to RR but the lack of puncture resistance makes me worry every time I hit really rough patches of road.
I think the GP5000s are great allrounders, though fitting them is a *#&! with some rims.
I’ve got Schwalbe One’s (regularly on sale for less than £20 a tyre) on my winter bike and I think they are hard to beat at that money.
clinchers with latex tubes roll best unless you want to use less than the manufacturer recommended sealant.
At least according to bicyclerollingresistance.com
It depends on the tire. In most cases, the ‘protected’ tire gets just as many flats as the fragile one. A lot of times the tread on something like a Corsa Control picks up that shard of glass and holds it as it gets beaten in. Flats happen at the beginning of the season and when it’s wet out, just ride on clean pavement at those times. The rubber compound makes a bigger difference than the ‘protection’.
In my experience, the GP5K is more resilient than the Vittoria. I’d get a set of foul weather wheels/tires
Yes, but the issue with this is tire pressure preference. I prefer riding at around 80 psi and there is no way I would run a latex tube at 80 psi. That’s a pinch flat waiting to happen. It’s the main reason I switched to tubeless. I kept getting pinch flats because I just wouldn’t run enough pressure on piss poor roads. With tubeless that worry is gone. Back to the OP, I race my TT bike on Vittoria Corsa Speed and have GP5000TL on my road bike. I think the issue with the Corsa Speed is not only is it more prone to puncture but it wears out faster.
1 Like
That is true! One pinch flat will make me much slower than a few watts of rolling resistance.
1 Like
As long as the Conti’s are compatible with your wheels, you can’t go wrong with the GP5000 TL’s. Fast rolling, pretty durable, great road feel, and long wearing.
My current hookless Enve wheels are not compatible with them and I do miss them. I’m going to give the new Enve tires a go in the spring. They look like decent all-rounders as well.
There’s been some buzz over on other forums that Aerocoach measured Corsa G+ 2.0 TLR’s to be not as fast as bicyclerollingresistance’s website claims (link at bottom).
Secondly, even if Aerocoach’s data were wrong and Vittoria’s were indeed faster or equal to equivalent TLR race tires, another very common topic of concern around the Corsa G+'s is its tread patterns are prone to retaining glass shards and debris as have been observed on the clincher version. Granted, it’s tubeless so the idea is to let the sealant deal with it. And if you’re doing a TT on a good course this becomes even less of a risk. That said, I like mitigating equipment-related risk when it’s time to execute…
So to answer your question, if it were me I’d use the not-as-light but maybe actually faster and more puncture-proof GP5kTL’s. Because Crr & reliability matter far more than weight in a (flat) TT. 
Gp5k is the answer