Alex Rims G3000 for 29er or loaded touring?

daveornee said:

Has anyone here used the Alex Rims G3000
http://alexrims.com/rims/ct_g3000.htm
for 29er or loaded touring?

....

Quoted message said:

I plan to build some very strong wheels for riders over 250 pounds
that will put them to heavy duty use.

Those are wider, taller, and >100g heavier than most of the 700c rims I
use with good results (but I do use 48 spoke wheels). If they had been
available to me, I would have tried them on my electric-assist bike,
which has 36 spoke hubs. Instead, I settled on these, which
unfortunately are almost as wide as the maximum tire tize I can
accomodate in my frame:
http://www.unicycle.com/shopping/shopexd.asp?id=805 This has limited
my choice of tires to a very narrow range of sizes that are both wide
enough to fit on the rim and narrow enough to fit in the frame.

Alex Rims use 6061-T6 aluminum, rather than the weaker 6106 alloy used
by Velocity and Mavic for most of their offerings. The use of 6061
alloy results in slightly lower finish quality, but in my judgment Alex
rims look fine and the increased strength the alloy offers is much more
important.

I suggest pairing rims like those with a frame that can accomodate wide
tires-- the wider the better. On my electric-assist bike, I now have
wheels that are strong enough for the application, but the reliability
of the tires is poor. If I inflate them to their recommended maximum,
I can't get to work over the broken pavement without getting a pinch
flat. When I overinflate, then I sometimes suffer blowouts that damage
the tire bead beyond repair. If I were able to mount tires like
Schwalbe's Marathon Plus 700x45 or Big Apple 700x50, I doubt I'd have
to overinflate them to prevent bottoming, even with the rear-biased
gross weight of roughly 500 pounds that my electric bike must contend
with.

The narrowest tires I use are Panaracer Pasela 700x35, which measure
about 32mm inflated. These are a good choice for "narrow" tires for
the rims you are considering; they are wide enough to have a more or
less normal inflated shape on a rim of 19mm inside width.

Chalo Colina