Maximum shock PSI

Phinx

Is anyone aware what is the maximum PSI of Giant Air Shock? Came as default on my Giant Yukon FX 3. I wrecked through the manuals that came with it, and nothing is said on maximum PSI. I wanted to set it up and the manual says i need to pump it up to a PSI level that's the equivalent of my weight first, which will leave it at 228psi! I'm not sure it can take it

Andy B

Just set the shock to the pressure that gives you the sag you want (generally 30%)

Some shocks go to 300psi, yours may or may not.

Phinx

That's the thing, i don't want to blow it up. The manual did mention a sag of 20% to 30% as an optimal, but that is rather vague.

cooldad

Then set it specifically to 25%

Phinx

That will leave it at roughly 170 psi. That was my question from the very beginning - can my shock take it?

cooldad

I would assume so, or only tiny people would be able to use them.

Phinx

The bike was cheap (around £700, but cost me 320 thanks to paulscycles) and i just assume its capabilities by price and the targeted use (XC). Well, lets hope it hold out!

konadawg

Foxes can take 300 psi, yes I know that "mine aint a fox" but what I mean to say is that you should not be scared of the big numbers.

benny17

im kinda looking for the same answer, ive got a giant trance x-2 and ive been told it could do with some air in the shocks but ive got no idea what to put in them, both front and back, im prity well bang on 100kg, any one got any idea???

nicklouse

Phinx wrote:

That will leave it at roughly 170 psi. That was my question from the very beginning - can my shock take it?

just set the pressure to what you need to get the sag you want.

stop worrying.

02gf74

ofcourse they can take it ... think about it.

the static pressue, what you are talking about is less when compared to what happens when you land on the back wheel from a 12 foot drop off - the pressure in the shock will probaby double or more. (unless of course they blow - I've yet to hear of this happening)

knowing this, never sit on your bike when the shock pump is connected as this will send the pressure off the scale and knacker your pump gauge (no need to ask how I found that out, stupid stupid GGRRR.....)

cavegiant

02 the pressure will also be higher when you compress, so I might suggest your trail of logic may have a flaw in it.


In repsone to the OP.
No-one here seems to know the specific answer, but the suggestions are all the same.

How much do you weigh?

If you are a normal weight guy, using the bike set up normally will be fine.

If however you weigh 15.5 st, then you might be overstressing it.

I do weigh 15st and am running my RP23 pretty high, it just means it will need servicing more often.

So if you are normal weight, worry not.
If you are as big as me, phone Giant and ask them.

Kaise

Moved from a thread i have just deleted;

I am a pretty heavy bloke, 17st to be exact but it isnt fat so im happy with it!

anyway enough of that justification, does anyone know what pressure is the max on a Float R from about 2 years ago?

I have mine at 250psi and i still get a serious amount of sag.

I took the bike to Spec and they said the bike didnt have anyproblems and my LBS said the same.

Cheers

A

cavegiant

The max PSI is 300 for the float. But you will be wearing seals quickly. My last shock I ran at 260 and it took 6 months to cavitate.

What bike are you riding?