Re: [CR] Fat 700x28s on narrow Weinmann Concave Rims?

Mark,

The hot wired clincher back in the day before hooked bead rims were the Dunlop high pressures at about 27" x 1-1/8" or very close to 28 mm. They were good because you could safely pump them up to 90 psi. I really would not do 120 psi overnight or you might wake up suddenly to a loud bang! ... if the tire waited for you to get to sleep. I'd be afraid to use anything over 100 psi for a non hooked bead rim.

Good luck and happy trails,

Dan Artley in Parkton, Maryland USA

Archive-URL: http://search.bikelist.org/getmsg.asp?Filename=classicrendezvous.10911.0730.eml Date: Fri, 13 Nov 2009 14:17:51 -0600 From: Mark Stonich <mark(AT)bikesmithdesign.com> Subject: [CR] Thank you/Was 700 x 28 tires on narrow Weinmann Concaves ( http://search.bikelist.org/query.asp?SearchString=%22Thank+you%2FWas+700+x+28+tires+on+narrow+Weinmann+Concaves%22&amp;SearchPrefix=%40msgsubject&amp;SortBy=MsgDate%5Ba%5D )

I received several off list postings from people who had used such a combo with good luck. Thank you

... Before riding I'll pump them up to 125 or so and let them sit overnight. Rims and tires have a +/- tolerance and judging from the chore it was getting the old tires off, I think these rims are on the plus side of the tolerance. ...

At 11/13/2009 10:10 AM -0800, David Feldman wrote:
>I used wire bead 28's on Concaves when they were current product. I
>would stick to wire bead tires on them--there were warnings that
>their bead shape wouldn't hold a folding tire back in the day, to
>the point where Specialized included printed, illustrated warnings
>with early folding Turbo tires.
> David Feldman
>Feldman's Bicycle Repair
>Vancouver, WA
>360-694-4228/503-998-7249

Mark Stonich;
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