fox shock air pressure?????

[woodym7]

new 2010 m8, just wondering what roughly i should start out at for pressure i just checked they are 65 in fronts and 125 in back im 210 no gear......and shes stock except for clutching and can.....thanks in advance guys

 

[Hicktown]

I run. 60 in the front, 140 I the back. I'm 220 without gear. I have a motocross background and tend to like a bit stiffer sag. Hope.that helps!

 

[catmando]

I run. 60 in the front, 140 I the back. I'm 220 without gear. I have a motocross background and tend to like a bit stiffer sag. Hope.that helps!

That sounds a little stiff in the front,I would try 45 and work your way up if needed!
Thats what I ran in my Kingcat! (45 in the front)
catmando!

 

[scrfce]

see and i go opposite than most, at least 75 in the fronts and full 150 in the rear and im only coming in at a buck sixty, i like it better that way instead of to soft

 

[gartho]

I agree 60-65 in front & I go 150 in rear,the rear shock is weak at best so the more the better. I took out the rear fox on my 2011 m8,i love it,09 still has fox rear,saggy sad sometimes,won't be long the fox rear on the 09 will be gone also.:d

 

[Little]

So, what shock did you replace it with?? I also have issue with a weak rear on a new '08 m1. Mark

 

[Slammer85]

I run a 170 pounds of nitrogen in my rear shock instead of air. It's a little stiff on the trail but gets on top of the snow way better for boondocking and hill climbing. The thing with nitrogen is u never lose presure at elavation like u do with air.

 

[Rucky]

I run a 170 pounds of nitrogen in my rear shock instead of air. It's a little stiff on the trail but gets on top of the snow way better for boondocking and hill climbing. The thing with nitrogen is u never lose presure at elavation like u do with air.

The shock is only rated for 150 lbs . I said it before and I'll say it again: Asking what shock pressure to run is a waste of your time... Everyone has different riding styles/riding weights etc. Plus who's to say each of those cheap looking fox pumps is made the same. Could be off 10 lbs between any two for all we know. A word of advice that is pretty much universal though, is to run your left front 3-5 lbs higher than the right. Otherwise your sled will sag to that side.

 

[blar]

The question isn't a waste of time. I'm fairly new to sledding and am still getting used to my machine. I would like to know what other maybe more experienced riders are running for pressure and what it does for handling and steering. The owners manual doesn't tell you anything.

 

[Rucky]

The question isn't a waste of time. I'm fairly new to sledding and am still getting used to my machine. I would like to know what other maybe more experienced riders are running for pressure and what it does for handling and steering. The owners manual doesn't tell you anything.

Then start on the high end of what people are saying ( 75 front, 150 - the max - back ) and work your way down until either 1. You find a sweet spot. or 2. It bottoms... Then go back up 5 lbs or so.

 

[Shortcut]

The question isn't a waste of time. I'm fairly new to sledding and am still getting used to my machine. I would like to know what other maybe more experienced riders are running for pressure and what it does for handling and steering. The owners manual doesn't tell you anything.

The owner's manual states no more than 150psi in the fox shock, depending on riding style etc it's a crap shoot to get where you want with pressures until you ride the different conditions. I go 65psi on the front left, 60psi on the front right, and 145psi on the rear, about 210 loaded with gear. You could also do some tweaking with the front shock if you have lots of ski pressure, but make sure you have at least 1/8" slack in the limiters. Best to just play around and adjust, you will find your sweet spot!

 

[suzuki_ryder]

I ran 70psi in my front and found it didn't transfer at all, dropped it to 45 and works pretty well. Going to try 35 this week to see if it works better yet even though I have very little ground clearance. Like the other guys have stated earlier, pump the shock that sags the most with you on the sled with more air. On my sled it's the right shock, on my brothers it's the left shock.

 

[woodym7]

Thanks guys

 

[medler]

Good info guys

 

[Orrin]

I run a 170 pounds of nitrogen in my rear shock instead of air. It's a little stiff on the trail but gets on top of the snow way better for boondocking and hill climbing. The thing with nitrogen is u never lose presure at elavation like u do with air.

Actually air is 78% nitrogen and has a compressability factor of .9992, pure nitrogen has a compressability factor of .9997 it's impossable to notice the difference. The only real advantage to running nitrogen is that oxygen has a smaller molecule and can leak past your seals faster than pure nitrogen, again in one day of riding it's doubtfull you'll notice the difference since only about 20% of the air you put in your shock is oxygen anyway.

 

[mountianguy]

I run a 170 pounds of nitrogen in my rear shock instead of air. It's a little stiff on the trail but gets on top of the snow way better for boondocking and hill climbing. The thing with nitrogen is u never lose presure at elavation like u do with air.

Elevation will not affect pressure but tempature will.

 

[Newfie1]

That is true but for every 1000 ft you climb the tempature drops 2 degrees.

 

[Rucky]

Elevation will not affect pressure but tempature will.

My ears popping all the way up/down the trail tell me different