gschreckchat@comcast.net

If you do use Fast Tack it can disolve the glue holding the base tap to the tire for certian brands, which leads to unfortunate results. If you use Continental, you really should wait 24 hours before using the wheel. Also, with Continental, you should put a second coat on the rim a few minutes before you mount the tire. The really annoying part is making sure the tire is straight and cleaning bits of glue off your hands after wrestling with the tire.

As for rolling resistance, tests show that the rolling resistance varied greatly for clincher and tubulars, so it really is impossible to make a clear statement. Generally, comparing the same brand of clincher and tubular, the clincher will have slightly less rolling resistance, but many clincher brands had higher rolling resistance that some tubular brands (as well as those particular brads of clinchers) so the rule has very limited use.

Also, the wattage group is most TT guys who tend to be worried more about riding in a straight line as fast as possible. They did not evaluate cornering, nor did they value the ability to ride a tubular when flat. I finished a TT on a flat tubular and whould not have been able to do so with a clincher. Also, to Eric's point, I find that when tubulars flat, they are a bit safer as they stay on the rim and seem (??) to flatten at a slower rate.

If you get carbon wheels like Zipps, the tubular wheels are much lighter.

All that said, tubulars are more expensive and a bit of a bother. It comes down to personal choice and whether the benefits are worth it to you.

--

George Schreck
gschreckchat@comcast.net
(503) 502-0425

-------------- Original message --------------
From: darellp@easystreet.net

> I always wear my helmet when I glue my sew-ups ;-)
>
> Before you glue your sew-up, stretch it out on rim for at least a week or two.
> Pump it up to full inflation. In the past 29 yrs of racing, I've come across 4
> tires that either leaked or in one case was made just a bit too small. All were
> returned with no problems. Once you put glue on it, forget about returning it.
>
> I use 3M fast tack 08031 in tube form. First I apply glue to the rim and leave
> it for 20 min. Then I apply glue to the sew-up and then hang it up for another
> 20 min. Last step is fitting the sew-up onto the rim. Pump up tire to about 20
> PSI and adjust it so it is aligned on the rim. Then pump up to full pressure
> (e.g. 9-12 atmospheres, depending on tire). Let it sit overnite (at least 12
> hrs) before using. Never have had a problem. This 3M product is now hard to find
> however. Have also used Conti glue in the past and it's OK.
>
> DP
>
>
> Sent via BlackBerry from T-Mobile
>
> -----Original Message-----
> From: "Mike Murray"
>
> Date: Thu, 28 Feb 2008 11:11:00
> To:"'OBRA List'"
> Subject: [OBRA Chat] Tubulars vs. clinchers
>
>
> We might be able to get as many postings with this subject. What do you think?
>
>
> Mike Murray
>
> -----Original Message-----
> From: obra-bounces@list.obra.org [mailto:obra-bounces@list.obra.org] On Behalf
> Of C M
> Sent: Thursday, February 28, 2008 08:08 AM
> To: jon.ragsdale@comcast.net; OBRA List
> Subject: Re: [OBRA Chat] Helmets will be mandatory in Vancouver, WA
>
> Jon....good job with the original posting, as of this morning I count 71 entries
> related to this topic, this may have set a record.
>
>
> On 2/26/08, jon.ragsdale@comcast.net
> > wrote:
>
> There is a story on the front page of www.kgw.com
> reporting that Vancouver has enacted a rule that in 30 days all cyclists will be
> required to wear helmets. Full story:
> http://www.kgw.com/news-local/stories/kgw_022608_news_vancouver_helmet_law_bicyc
> le.2edad9de.html
> > cle.2edad9de.html>
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