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24-06.-2008, 09:47 AM
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#31 |
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Guest
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Re: Lower pressure tyres vs suspension seat post??
David L. Johnson wrote:
> Tom Kunich wrote: > >> So far the only tires I've used that got better than that are the >> latest Vredesteins. >> > I have been happy with the Vredsteins over the past year or so. Tire > life similar to the tan sidewall Avocets, and very good resistance to > tread cuts (glass, etc.). But I only see them in 23s (or maybe 22), > which is narrower than some of you want. > Which Vred model, please? In shopping them online, I can't tell which ones are the better models and which are lower quality. Thanks, Mark J. |
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24-06.-2008, 12:36 PM
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#32 |
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Guest
Posts: n/a
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Re: Lower pressure tyres vs suspension seat post??
Mark wrote:
> David L. Johnson wrote: >> Tom Kunich wrote: >> >>> So far the only tires I've used that got better than that are the >>> latest Vredesteins. >>> >> I have been happy with the Vredsteins over the past year or so. Tire >> life similar to the tan sidewall Avocets, and very good resistance to >> tread cuts (glass, etc.). But I only see them in 23s (or maybe 22), >> which is narrower than some of you want. >> > > Which Vred model, please? In shopping them online, I can't tell which > ones are the better models and which are lower quality. Umm, I would have to think about that, or run down to the basement to see. Fortezza, but be careful of the Performance-special (as far as I know) Fortezza-something, which are not as good. I use the no-adjective Fortezza which advertise that they can take some ridiculous pressure like 145psi. It is a really nice, light and flexible tire, that wears a long time. Last time I bought them they were somewhere in the $25-$30 range. -- David L. Johnson It doesn't get any easier, you just go faster. --Greg LeMond |
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25-06.-2008, 01:12 AM
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#33 |
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Guest
Posts: n/a
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Re: Lower pressure tyres vs suspension seat post??
David L. Johnson wrote:
> Mark wrote: >> David L. Johnson wrote: >>> I have been happy with the Vredsteins over the past year or so. Tire >>> life similar to the tan sidewall Avocets, and very good resistance to >>> tread cuts (glass, etc.). But I only see them in 23s (or maybe 22), >>> which is narrower than some of you want. >>> >> >> Which Vred model, please? In shopping them online, I can't tell which >> ones are the better models and which are lower quality. > > Umm, I would have to think about that, or run down to the basement to > see. Fortezza, but be careful of the Performance-special (as far as I > know) Fortezza-something, which are not as good. I use the no-adjective > Fortezza which advertise that they can take some ridiculous pressure > like 145psi. It is a really nice, light and flexible tire, that wears a > long time. Last time I bought them they were somewhere in the $25-$30 > range. Thanks, I had heard something about the Performance model so I wanted clarification. I've since found this collection of reviews that seems to point out the difference: http://www.roadbikereview.com/cat/w...93_2489crx.aspx Mark J. |
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25-06.-2008, 09:24 PM
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#34 |
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Guest
Posts: n/a
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Re: Lower pressure tyres vs suspension seat post??
On 23 Jun 2008 15:19:11 GMT, jobst.brandt@stanfordalumni.org wrote:
>> Performance is in cornering. I prefer the smaller thinner tires for >> that. > >Although I have no data on it, I believe fatter tires corner better, >mainly because they can be run softer to absorb paving irregularities >while not allowing perceptible lateral flex. Beside that, they give >larger road contact that, I believe, must improve traction. We can >take some hints from motorcycles in this respect. There's something else you both seem to be forgetting about: tyre profile. If you look at a fast cornering (rear) motorcycle road tyre, it's not just wide - it's profile is much more similar to a D rather than a U, contrary to off-road motorcycles. I believe this makes a significant diference if you're using, say... a 23mm tyre on a rim 13mm, 15mm, or 17mm wide. >I prefer 28mm cross section tires between 6 and 7 bar (aka 85-100 psi) >to achieve a sure cornering response on typical mountain road descents. Can I assume you're NOT using a 13mm wide rim, or your tyre profile would be closer to a U rather a D, and your tyre would have a greater change of flexing laterally, hence defeating your original aim? Confort wise, however, I assume a thinner rim, all other things being equal, would be more confortable, as it would raise the tyre profile, therefore providing better shock absortion. Best, Jose |
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