Flat Spot on Rim

Flat Spot on Rim

Post by Michael S. Luek » Sun, 30 Jun 1996 04:00:00


After a tire blowout and subsequent 1/4 mile ride on a flat, my
rear rim now has a vague flat spot.  Visibally it's difficult to
notice without looking at the rim line at the brake pad while
spinning the whell.  But I feel the bump while riding.

Can this flat spot be rerounded?  If so how?  If it matters the
rim is a Campagnolo Omega.

-------
Michael S. Lueke

 
 
 

Flat Spot on Rim

Post by Chris Cullo » Mon, 01 Jul 1996 04:00:00

Quote:

> After a tire blowout and subsequent 1/4 mile ride on a flat, my
> rear rim now has a vague flat spot.  Visibally it's difficult to
> notice without looking at the rim line at the brake pad while
> spinning the whell.  But I feel the bump while riding.

> Can this flat spot be rerounded?  If so how?  If it matters the
> rim is a Campagnolo Omega.

> -------
> Michael S. Lueke

There is a tool designed for puling out flat spots, but it is crude at
best. If your flat spot is so small that it requires the brake pads as a
reference point to see it, I doubt that I could make your wheel much
better. I have 10 + years experience as a bicycled mechanic. Now just
because I can't help dosen't mean it can't be done, but my guess is you
will have to rebuild the wheel with a new rim in order to fix the
problem

 
 
 

Flat Spot on Rim

Post by Tan Wee Y » Mon, 08 Jul 1996 04:00:00


: After a tire blowout and subsequent 1/4 mile ride on a flat, my
: rear rim now has a vague flat spot.  Visibally it's difficult to
: notice without looking at the rim line at the brake pad while
: spinning the whell.  But I feel the bump while riding.

I managed to get a similar one from a miscaluclated bunny-hop
on the rear wheel...
The bike shop I visited (one of the best around my place) suggested
I changed the rim.. apparently, there is no way to reround it.

My problem is a little worse than yours.. the bump is obvious with
careful search.
I guess if you use a wider tire , you may not be able to feel the bump
anymore but no garantee.

Has anyone any success in rerounding indented rims??

: Can this flat spot be rerounded?  If so how?  If it matters the
: rim is a Campagnolo Omega.
That's a really nice rim..

Just me,
Wire ...

 
 
 

Flat Spot on Rim

Post by TBGi » Wed, 10 Jul 1996 04:00:00


writes:

Quote:
>Has anyone any success in rerounding indented rims??

I've had limited success doing that.  You support the rim on either side
of the dent with a couple of 2X4s (or equivelent) and  bang (protect the
rim from damage with another piece of wood) the dent out.  (See "The
Bicycle Wheel" by Jobst Brant, page 115 of the 3rd edition).  My LBS has a
jack like device that will press the dent out by applying pressure on the
other side of the rim and on the dent, I don't know how it is actually
used but they did a good job for me with it a couple of years ago.  

Good Luck


 
 
 

Flat Spot on Rim

Post by Frank Van Zant » Sat, 13 Jul 1996 04:00:00

much about rounding dented rims.

Try someone who builds motorcycle spoked wheels.

I've found someone who has a device consisting of several adjustable
rollers. He pushes the rim through this and when finished, the rim is a
lot better than when he started. Not 100% though.

Frank van Zanten