29er air pressure for trails

I think it depends on your rim too. I run my KH29 with a Kenda Klaw
around 30-35 psi. If I remember, I would run my Yuni 29er with a Nano
Raptor around 40-45 psi. And, I only weigh 140 wet.

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phlegm
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teachndad said:

What is a good tire pressure for a 29er on light technical trails?

I ride with 28 psi. I weigh 190. Conversly, Tommy rides with 35 psi. I
think he might weigh 170 (including his helmet and camelback).

I like a little cush. Occationally I will fold the tire on the bigger
hops/drops. (all of my hop/drops are under a foot, by the way).

I tried the higher psi and it springs me off. One of my more painful
crashes was because of this.

10 minutes of experimentation will get you set.

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phlegm said:

I think it depends on your rim too.

And your weight.
And your riding style (aggressive, non-aggressive).
And the terrain in question.
And your specific tire dimensions.
And your rim dimensions.

The question of tire pressure used to be a lot easier to answer. You
were either riding your 20" or 24" unicycle indoors or outdoors. Hard
for outdoors and a little softer for the floor.

Now with all the various wheel, tire and rim sizes, as well as types of
terrain and riding, there is no simple answer other than this: "Enough
to keep your rim off the ground." This takes experimentation.

I think the 29er is a great size for Tahoe Rim. I used mine last time
and it worked out fine. There were a couple of spots I didn't attempt
due to lack of confidence in my wheel's strength, but otherwise it was
great for catching up/keeping up with the group.

I will use my 29er again this time, and now it's better. I've gone from
a skinny rim to a much wider KH, which makes me much more confident
when things get rocky. I'll probably attempt all sections of the ride.

I use the tire pinching method, so I'm not sure what pressure I run at
any given time. My wider rim allows me to run it a little lower than I
could with the narrow rim (with which I had two massive blowouts on
separate rides before).

That ride is mostly rolling and relatively smooth, with a few isolated
technical spots along the way. This means you're probably fine with
higher pressure than on a really bumpy trail. My advice is always to
start high, then let air out as needed. The pump in my car is much
easier than the one I ride with on my back!

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johnfoss

John Foss
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"The worst thing you can do on a unicycle when you land is stop dead."
-- Kris Holm, world's expert on high-consequence unicycling
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