On 2019-02-06 09:56, AMuzi wrote:
On 2/6/2019 11:25 AM, Ned Mantei wrote:
On 06-02-19 16:38, Joerg wrote:
I have used up some rims over my riding years. Back as a
student when I did 6000 miles per year I "solved" the
problem of having to spoke in by buying another used
beater bike every year. After I bought my first custom
road bike I had it done at the LBS because I am not that
good in trueing a wheel.

Waiting too long can be risky and not all rims have good
indicators when they are about to go. My sister had a
violent rim blow-out on a mountain bike. Luckily it was
the rear wheel. Of course, according to Sir, our family
must be a bunch of carnivores and rim eaters.

Not long ago I replaced the front rim on my everyday bike.
This was a DT-Swiss rim, which had as a wear indicator some
tiny holes a mm or so deep in the side. The rim should be
O.K. as long as you can see the holes. They were still
visible, but there was a slight grab at one spot while
braking, and there the rim joint had become visible. I
decided to replace the rim to be completely safe, and had
certainly got my money's worth since it was about 9 years
old. Out of curiosity I showed the rim to the LBS expert. He
broke the rim into pieces, with a for me surprising result:
Part of the rim wall was only about 0.75 or 0.8 mm thick, so
well into the danger zone. ...


Blowing a front rim can put you in the hospital or worse.


... Glad that I was cautious, even
though transferring the spokes to a new rim and getting
everything adjusted took more than 4 hours.

Ned

"transferring the spokes to a new rim and getting
everything adjusted took more than 4 hours."

including occasional meditation sessions and painting the room.


And the occasional cussing, followed by a spoke wrench being thrown to
the ground. I was sometimes close to that state.

There are two things I don't particularly like about cycling. Trueing a
wheel, and hills.

--
Regards, Joerg

http://www.analogconsultants.com/