DH Rim Choices...

my KH has been working super well
i only get foldovers on ridiculously steep hills (like 75-85 degrees)
eventhen, the foldovers aren't total, just a little jump in the tire,
not like a complete fold

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ColDawG said:

*(like 75-85 degrees)*

You've been told a million times not to exaggerate... 🙄

Phil

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i've done a hill that was like 60, but the top two feet were around
70-80, seriously!

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The first generation of KH2005 model rims have sidewall failure... I saw
FUego's rim pop at Moab from a 2-3foot drop onto sand. But Kris said
that the new batch going into UDC would have the sidewall flaws fixed.

But you can't go wrong with the Alex DX32, and if you Order from Darren
Bedford, he can powdercoat it a variety of cool colours!

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ColDawG said:

i've done a hill that was like 60, but the top two feet were around
70-80, seriously!

I'm with Phil here. How did you measure that? I believe that you
seriously THINK the hill was that steep but not that it actually IS.
You need an inclinometer, see e.g.
<http://www.xs4all.nl/~klaasbil/inclinometer.htm>.

Klaas Bil - Newsgroup Addict
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colin those hills u me and trey did were not 80 degrees it was like 50
and then the top was like 60-65. OO and the tires never really fold a
ton just make sure u dont hav too little of air pressure in it

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ColDawG said:

*i've done a hill that was like 60, but the top two feet were around
70-80, seriously! *

There's a certain angle where the pedal and crank will hit the slope and
I believe it's far less than 80 degrees.

Andrew

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andrew_carter said:

There's a certain angle where the pedal and crank will hit the slope and
I believe it's far less than 80 degrees.

When you ride straight up a hill (as opposed to slantingly) the pedal
or crank won't hit the hill. Still I don't believe the 80 nor the
later suggested correction of 60 - 65 degrees. I only believe measured
data and then if it's steep like that, I want video too.

Klaas Bil - Newsgroup Addict
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Klaas Bil said:

*When you ride straight up a hill (as opposed to slantingly) the
pedal
or crank won't hit the hill. Still I don't believe the 80 nor the
later suggested correction of 60 - 65 degrees. I only believe
measured
data and then if it's steep like that, I want video too.*

Well I got the impression they were talking about the tyre folding over
the rim which would only be an issue if they were side hopping up.

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That's more or less what happened to me. The rims on the nimbus are the
same as the KH, I beleive, so that would explain that. I'm not sure if
you could get it warrantied or not, but you should at least try. it was
a manufacturing defect, so it ought to be under warranty. I got lucky
because I met Kris at Moab, and he lent me a wheel.

as for good rims, sun doublewides are massive and really strong. I'd
reccomend one of them.

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You could get a KH, Arrow Racing DHX (😄 ), Atomlabs trailpimp, Atomlabs
Aircorp, Atomlab GI dirt, Sun Doublewide, Halo Combat SAS (it's nice in
white), or a Halo Tornado (a lighter Combat SAS.

Those are just the ones that I can think of off the top of my head.
They all come in 24 and 26 inch sizes.

The trailpimp is about as heavy as rims come. The KH is probably the
lightest. I obviously like the DHX the best, although it is not as
light as a DX-32.

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Fuego said:

*as for good rims, sun doublewides are massive and really strong. I'd
reccomend one of them. *

I've got one of these rims on my MUni and I was about to post the same
thing, but I did a little Googling first... I discovered that a lot of
MTBers aren't so happy with these rims, saying they developed flat spots
quite easily, and outright break (although that's after jumping 20-30
feet) rather than bend.

This hasn't been my experience. I've subjected my Doublewide to loads
of torture, on pavement and offroad, with regular 2-3 foot drops and the
rim stays true. I've even broken a UDC hub with my DW! The rim is
gi-normous and allows you to run your tires with super-low pressure,
without risking a pinch-flat. I've folded the tire over several times
on large drops and was able to ride for miles thereafter with no
problems. This rim is beefier than a 16-oz steak!

The only potential pitfall with the DW is that the sides of the rim
aren't ground, nor are they incredibly smooth. This means you won't be
able to put Maguras (or other hydraulic brakes) on your MUni without a
visit to the machine shop. If you don't care about brakes, then it's a
non-issue!

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andrew_carter said:

Well I got the impression they were talking about the tyre folding over
the rim which would only be an issue if they were side hopping up.

You're right - I missed that.

Klaas Bil - Newsgroup Addict
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