I've been racing crits on a set of GPs for half a season and have really been impressed by them. But all prices being equal you would go for the Rubino?

Friends don't let friends race with Rubinos. GP 4000s are the best clincher tires I've found for bike racing (not triathlons or tt's). Fairly durable and grip well. Also had good luck with Pro 3's if I only used them for racing and nothing else. The Pro 3's were always really good in wet weather.

Nah... I'd get the GP if the price was the same. Haven't seen the GPs very cheap though.

Pretty good deal going over at Probikekit right now on the GP4000s: http://www.probikekit.com/...ncher-road-tyre.html

-Dave

I have seen the non-4000 for under thirty.

Has anyone seen Crr data for the Veloflex Extreme tubular?

I am trying to decide which tires to put on a new set of TT wheels; HED Stinger disc and HED Stinger 9 front. Typically I would go with the Veloflex Carbon (23mm), but I wondering if besides a slight reduction in weight if the Extreme (22mm) would also offer a Crr benefit.

please refer to AFM Rev 9 for tubular data.

generally, properly glued is faster. heavier means nothing.

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Aerodynamic Retul Bike Fitting

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Thanks. I wasn't implying that the lighter Extreme would have a different Crr based on its weight. Compared to the Carbon, it has a higher thread count, a different tread pattern and it's a 22 vs. 23. These are the attributes that make me question how it's Crr compares.

no need to question... AFM probably has the data.

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Eric Reid AeroFit | Instagram Portfolio
Aerodynamic Retul Bike Fitting

“You are experiencing the criminal coverup of a foreign backed fascist hostile takeover of a mafia shakedown of an authoritarian religious slow motion coup. Persuade people to vote for Democracy.”

Could someone please point me in the direction of AFM rev 9? Thank you.

try this

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Eric Reid AeroFit | Instagram Portfolio
Aerodynamic Retul Bike Fitting

“You are experiencing the criminal coverup of a foreign backed fascist hostile takeover of a mafia shakedown of an authoritarian religious slow motion coup. Persuade people to vote for Democracy.”

Thanks for this, it's incredibly useful!

So I ordered a pair of Vittoria Corsa SL's, and what I received are Open Corsa EVO Tech's (model #23-622). Anyone have any info on these...I don't even see them listed on the Vittoria site?

Thanks.

Scott

I thought those were their "wet-grip" compound tires? And, if I'm remembering correctly, slower than the CX's, much less the SL's
:(

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I rode supersonics. No concern of flats... Road debris gets out of my way when I'm blazing down the road.

:)

In all seriousness, I'm a conti fan. I rode supersonics, Gp 4000, and attack/ force. They are all great. Supersonics seemed noticeably faster. They "feel" fast on acceleration. Maybe a placebo, but anything that gives a mental advantage- I will take it!

Just wondering if you plan to test the Michelin Pro4 Comp?

Is it a real new tire? If yes, could be interesting to compare...

Thanks to share with us all this interesting data!

I just ordered some stuff from Wiggle, and it looks like they have the Pro4 Comp LTD in stock for $50... but I didn't order it. It's only size 23 which is a little big on my rims.

any updates to this?

Wondering about Conti Force 24mm

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Eric Reid AeroFit | Instagram Portfolio
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“You are experiencing the criminal coverup of a foreign backed fascist hostile takeover of a mafia shakedown of an authoritarian religious slow motion coup. Persuade people to vote for Democracy.”

Tested 2 of them... no surprises. A hair better than Attacks on average.

But they are fat so I'd run Attacks front and rear. Turn them backwards.

well, for bike racing yeah but I'm thinking about running the Force 24mm on my Super-9 disc. It hides a 25mm GP4000s pretty well

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Eric Reid AeroFit | Instagram Portfolio
Aerodynamic Retul Bike Fitting

“You are experiencing the criminal coverup of a foreign backed fascist hostile takeover of a mafia shakedown of an authoritarian religious slow motion coup. Persuade people to vote for Democracy.”

Pretty sure the trailing edge isn't hidden...

agreed. I still like rolling the Supersonics though. I have had great success, although did just flat at Texas 1.5 miles in. I suspect I was lucky enough to pick up a safety pin coming out of transition. With that being said I tried to wear out a Supersonic all spring in Tucson, 2000 (1000 front + 1000 rear) ride miles no flats.

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You got 1k miles out of a SS on the rear? Lots more than I ever have...

Yeah it was weird, I kept expecting them to be done in March but I kept using them and using them. It got to May and I was sure after 115 mile ride and 105 mile ride they were going to be done but nope. Lots of power, and lots of time going up hills. Very minimal breaking and smooth blacktop. I am personally very shocked about this set. All I can think of is that they wear out pretty quickly with hard braking and rougher surfaces. These weighed in the range of 170+ grams originally.

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They might be putting more rubber on them then. Think the heaviest 23 I have is ~155g and the 20s are 140g or less.