"Splayed" Rim

Gary Jacobson said:

Thanks so much for any ideas.

OK, here's an idea: why don't you ask a question. You stated that you
had a flat, and you dinged your rim. Do you want a shoulder to cry on?

Jeff

JeffWills said:

Gary Jacobson said:

Thanks so much for any ideas.

OK, here's an idea: why don't you ask a question. You stated that you
had a flat, and you dinged your rim. Do you want a shoulder to cry on?

He wants advice on how (or even whether) to fix his wheel. Why so rough on
the guy?

We've got plenty of bullies in here already... BS

Gary Jacobson said:

Yesterday I had a precipitous flat on the rear wheel on a steep downhill and
maybe I couldn't unweight the wheel fast enough. I noticed today that there
is a distinct "thunkathunka" when braking. Maybe I ran over a rock on a flat
tire yesterday.

Seems that one side of the Velocity Aerohead (no offset) rim brake surface
is splayed out- maybe 2.5 mm. About two inches of the rim are involved.

You can push it back with a small slab of dried tree and a kinetic
energy transfer device.

This assumes that the brake surface isn't worn severely.

"Gary Jacobson" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

Yesterday I had a precipitous flat on the rear wheel on a steep downhill
and maybe I couldn't unweight the wheel fast enough. I noticed today that
there is a distinct "thunkathunka" when braking. Maybe I ran over a rock
on a flat tire yesterday.

Seems that one side of the Velocity Aerohead (no offset) rim brake surface
is splayed out- maybe 2.5 mm. About two inches of the rim are involved.

Thanks so much for any ideas.

Gary Jacobson

Rosendale, NY

Look under the rim tape. It may be splitting on the outer surface between
spoke holes, which spreads the rim out at that point.

Gary Jacobson said:

Yesterday I had a precipitous flat on the rear wheel on a steep downhill and
maybe I couldn't unweight the wheel fast enough. I noticed today that there
is a distinct "thunkathunka" when braking. Maybe I ran over a rock on a flat
tire yesterday.

Seems that one side of the Velocity Aerohead (no offset) rim brake surface
is splayed out- maybe 2.5 mm. About two inches of the rim are involved.

Thanks so much for any ideas.

You can usually bend it back, but braking will never be quite as smooth
(unless you have discs...)

Gary Jacobson said:

Yesterday I had a precipitous flat on the rear wheel on a steep downhill and
maybe I couldn't unweight the wheel fast enough. I noticed today that there
is a distinct "thunkathunka" when braking. Maybe I ran over a rock on a flat
tire yesterday.

Seems that one side of the Velocity Aerohead (no offset) rim brake surface
is splayed out- maybe 2.5 mm. About two inches of the rim are involved.

Just curious, did it make a bang?

Check out the bike FAQ, I think there's a part on fixing rims. You can
bend the rim wall back (carefully) with a crescent wrench. Aluminum
doesn't like bending, so go slowly.

Gary Jacobson said:

Yesterday I had a precipitous flat on the rear wheel on a steep downhill and
maybe I couldn't unweight the wheel fast enough. I noticed today that there
is a distinct "thunkathunka" when braking. Maybe I ran over a rock on a flat
tire yesterday.

Seems that one side of the Velocity Aerohead (no offset) rim brake surface
is splayed out- maybe 2.5 mm. About two inches of the rim are involved.

Thanks so much for any ideas.

I'd say that your guess is probably correct.

A bit of careful and patient application of a crescent wrench or two
will probably get that rim back into useful shape. I like to work
from the ends of the bump to the center, using one wrench to steady
the flange section on the "straight" side while using the other to
bring the bumped portion back into line. Inspect the flange for
cracking afterwards. (I've only had one rim crack while doing this,
but it can happen.)

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