On Monday, September 2, 2019 at 5:58:59 PM UTC-7, AMuzi wrote:
On 9/2/2019 7:50 PM, Sir Ridesalot wrote:
I just bought a used bicycle that has tubular tires on it. pparently it has sat for awhile as the rear tire has a low flat spot. NOTE this low spot is DEFIINTELY ON THE TIRE not on the rim which is true. Is there any way to get rid of this low spot on the tire caused by it sitting for some time? I've ridden the tire about 30 kilometers but there's been no change in t hat low flat spot.

Oh,it's definitely a low spot on the tire from sitting and not from improper mounting. The base of the tire is fine.

Cheers


Might reform itself if you leave it fully inflated but then
again it might not.
More hopeful with a nylon casing (Panaracer) less likely in
natural cotton (almost everybody else).

Road tubulars are so cheap now I don't cry over them.

How does a tubular develop a flat spot? The only time I had flat spots was when I did a poor repair. I would get hops with a poorly glued tire, particularly at the stem.

-- Jay Beattie.