On Wed, 6 Feb 2019 12:40:10 -0500, Frank Krygowski
wrote:

On 2/5/2019 11:17 PM, John B. Slocomb wrote:
On Tue, 05 Feb 2019 19:49:47 -0500, Radey Shouman
wrote:

Sir Ridesalot writes:

On Tuesday, February 5, 2019 at 2:09:28 PM UTC-5, Radey Shouman wrote:
Sir Ridesalot writes:

Snipped
What causes you to eventually discard rims? Do they just last forever?
Truly we must live in different worlds.

I just don't get how some people have such drastic problems with rims
wearing out.

Not sure what you mean by "drastic". Rims are a wear item.

--

If I get rid of a rim it's usually because it's been bent.

What I mean by "drastic" is people like Joerg who have to replace a
rim because it was worn through by rim brakes withing 1000
miles. Based on MY experience riding on dirt roads, touring with 40
pounds of gear on logging roads for 2 weeks at a time, and riding in
the rain and riding through the winter 1000 miles seems quite a low
number of miles for a pair of rims. I wonder if Joerg rides the
brakes?

I agree that 1000 miles seems a very short life for a rim. But I didn't
say that, and Joerg didn't bring it up, why did you?

Actually Joerg said
"Well, the rims on my 1st MTB were nearly shot after the first 1000mi
of"

Joerg is very, very unusual in many ways.

I was on a mountain bike ride where one guy's rim did fail from brake
pad wear. I didn't know him personally, so I can't say what the bike's
history was, and I've never heard of another such example from my many
cycling friends.

But it seems to me this depends not on the bike mileage, but on the
mileage during which the brakes were actually applied. On a road bike, I
doubt anyone spends a large percentage of their time on the brakes.
Well, excepting something like this:
http://adventureinhawaii.com/maui/downhill-bike-tour/

The force with which the brakes are applied also matters. I suppose if
someone were doing panic stops all the time, their rims wouldn't last long.

And I wonder how much the local soil composition matters. Joerg talks
about his soil composition being much more abrasive than that in other
locations. Perhaps he's right.

But then, he also talks about his local motorists being much more
aggressive than elsewhere, his trails being rougher than others, his
mountain lions being hungrier, etc. etc.

Don't forget the savage cows he often meets :-)
--

Cheers,

John B.