EAL
Thanks all, for the great advice. I'm thinking I'm going to head down to Bike Central after all in light of the liklihood of me creating a spectuacular YouTube video of a high speed (OK, low speed in my case) Alpenrose Yard Sale.
Ed
Steve Brown wrote:
This is all very confusing but let me know if I have this correct. Rolling resistance (RR) is determined primarily by tire deflection. Wide tires deflect less than skinny tires, so a wide tire with a high thread count is the best solution for RR. But wheel weight and aerodynamics are more important to overall speed than RR. So when you lighten up the wheel and go to narrower tire for less weight and better aerodynamics you need to increase tire pressure to eliminate deflection, but at a certain point over inflation will gain you little advantage.
Steve Brown
On Feb 28, 2008, at 12:29 PM, Tony McCray wrote:
I did a lot of research last year before buying a new set of wheels, and most of what I read suggested that a quality modern clincher is just as good as a tubular. Also, inflating your tubulars to a billion psi isn't necessary http://www.zipp.com/Portals/0/Shopping/Images/tire_pressures.jpg
-Tony
2008/2/28 tackyglueit :
i could have it backwards but im pretty sure that's what ive read over there. you should check it out, some of the conversations they have over there are pretty lettered.
On Thu, Feb 28, 2008 at 12:12 PM, Jerald M Powell wrote:
I have two questions for Mr "glueit"... First, (unless there's been some kind of celestial shift), don't you have that backwards? and Second, have you seen a rush by trackies to get wired-on track tires (if there is there such a thing)?
And one observation... The choice might depend on what the rims are that you have. On the road, the differences seem to be kind of academic. Cost for a similarly "durable" (OK, a twenty or thirty dollar tire/tube) or race-able tire (say, a tire combination that costs a bit over twice that) is similar, "tire life" is similar, and the trade off seems to be that the tub is harder to repair (and frequently is just discarded) but frankly, less often in need of repair.
Jerry
On Feb 28, 2008, at 11:46 AM, tackyglueit wrote:
all the guys over on the wattage site say clinchers are the way to go. too much rolling resistance with a tubular.
2008/2/28 Rick Johnson :
Yea, even BikePortland is up to 104 comments on the helmet law.
But, I'm interest in hearing more about tubulars - are they really worth the money and hassle? So far I've not heard enough to convince me.
Rick
Bryan Curry wrote:
No. I've seen 900+ messages on helmet usage within a single thread at Google groups. OBRA members are slackin'.
-----Original Message-----
From: obra-bounces@list.obra.org [mailto:obra-bounces@list.obra.org] On Behalf Of Mike Murray
Sent: Thursday, February 28, 2008 11:11 AM
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_bicycle.2edad9de.html
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