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Time trialists running clinchers: what's your preferred race-day tire/tube combo?

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Time trialists running clinchers: what's your preferred race-day tire/tube combo?

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Old 06-01-10, 03:30 PM
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Time trialists running clinchers: what's your preferred race-day tire/tube combo?

I'm running conti gp 4000s tires for no other reason than they roll nicely and are reliable. Forte inner tubes.

Curious whether others have upgraded to any tire/tube combination that has delivered noticeable gains (performance or comfort) on time trial race day.

Thanks
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Old 06-01-10, 03:33 PM
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https://www.bikeforums.net/showthread...ead-click-here.
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Old 06-01-10, 03:48 PM
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I've seen positive comments re Bontrager's TT clincher over at Slowtwitch, but have not tried them myself.
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Old 06-01-10, 04:53 PM
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Originally Posted by Flash
Curious whether others have upgraded to any tire/tube combination that has delivered noticeable gains (performance or comfort) on time trial race day.
I run Conti GP 4000 clinchers, unless it's hilly, then Conti Sprinter tubulars.
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Old 06-01-10, 05:03 PM
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Open corsa EVO CX 21mm 320tpi
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Old 06-01-10, 08:50 PM
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Conti Supersonic, Veloflex Record, Vittoria Corsa... all good. *Must* use latex tubes.
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Old 06-01-10, 08:54 PM
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I'm sure latex is da lovely, but the only flats I've had in 5 yrs have been on latex tubes.
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Old 06-01-10, 08:56 PM
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Any of them, TTs aren't really my thing..

But fwiw I use gp4000s or conti supersonics w/ cont "race lite" tubes, not sure if they're latex.

I need to work on aero before my tire will make a huge difference.
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Old 06-01-10, 11:48 PM
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Originally Posted by SpongeDad
I'm sure latex is da lovely, but the only flats I've had in 5 yrs have been on latex tubes.
They are much more resistant to pinch flats that butyl tubes. You just need to doubly careful that your rim bed is in good shape and don't pinch them during installation. I use them all the time.
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Old 06-02-10, 03:32 AM
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Originally Posted by mattm
I need to work on aero before my tire will make a huge difference.
Logic fail. Rolling resistance will vary between the best and worse tyres just the same whether you are riding a P3 or a Raleigh Roadster with a basket on the front.
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Old 06-02-10, 05:39 AM
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Originally Posted by rruff
Conti Supersonic, Veloflex Record, Vittoria Corsa... all good. *Must* use latex tubes.
This. Personally I use Vittoria Corsa's for tubulars (just glued a new 320 tpi to a disc last night) and Open Corsa's with latex tubes if I'm using a clincher. I'd never bother to glue a tubular with a butyl tube in it to a race wheel.
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Old 06-02-10, 05:46 AM
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same combo I use in road races and crits.
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Old 06-02-10, 07:36 AM
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Originally Posted by Basil Moss
Logic fail. Rolling resistance will vary between the best and worse tyres just the same whether you are riding a P3 or a Raleigh Roadster with a basket on the front.
I'm not sure but I think the UCI banned baskets on the front this year.
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Old 06-02-10, 07:39 AM
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Continental 4000s + latex tubes.
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Old 06-02-10, 08:43 AM
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Bontrager Race X Lite Pro 23 with Michelin latex 18-20.

Absolutely noticeable gains coming from Kenda Kalientes with generic butyl tubes. Kalientes are close to the slowest tire ever, according to BTR.

Last edited by cat4ever; 06-02-10 at 08:49 AM.
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Old 06-02-10, 09:37 AM
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I never even really gave it much thought really. I tend to always run 23's if using clinchers and they all seem the same to me. Is there really that much of a difference in tire choice for a TT?
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Old 06-02-10, 10:23 AM
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Originally Posted by jfmckenna
Is there really that much of a difference in tire choice for a TT?

Huge. By huge I mean around 1.0-1.5mph. Check out biketechreview's rolling resistance data.
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Old 06-02-10, 10:28 AM
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Originally Posted by Flash
I'm not sure but I think the UCI banned baskets on the front this year.
Hmm, I'm going to have to take it off for Nationals.
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Old 06-02-10, 11:07 AM
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Originally Posted by Basil Moss
Logic fail. Rolling resistance will vary between the best and worse tyres just the same whether you are riding a P3 or a Raleigh Roadster with a basket on the front.
Well to put my statement in context, I'm usually 2-4 minutes behind the winners in Cat 4 TTs... so even a 1 mph improvement wouldn't really gain me much, would it? (over 15k or so)

I'm already on gp4000s or supersonics, which I assume have "decent" rolling resistance.. so like I said, I think aero (and power) is what's really holding me back from the top 5 at this point, not the tires. I understand that tires will make a difference, I'm just saying it's not enough for me to care right now. TTs are stupid anyway... =]

With aerobars slapped on my road bike, and no aero helmet, I have no illusions that new tires will take me from 25th place to the top 5.. do you?
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