Fox Float DPS setup

[Craig Armstrong]

I just purchased a Specialized bike with the Fox Float DPS with Autosag.

 

I weigh about 75kg on a good day. 

 

After using the Autosag feature, my shock stops at about 90psi.

 

When looking at the rebound chart on Fox's website, that means I'm not even on the chart.

 

 

Am I really that light compared to other cyclists? Or does something sound wonky to you guys too.

 

 

[Grease_Monkey]

I just purchased a Specialized bike with the Fox Float DPS with Autosag.

 

I weigh about 75kg on a good day.

 

After using the Autosag feature, my shock stops at about 90psi.

 

When looking at the rebound chart on Fox's website, that means I'm not even on the chart.

 

 

Am I really that light compared to other cyclists? Or does something sound wonky to you guys too.

It's obviously different for everyone amd every bike, but 90psi is waaaay too little for your weight. Something is not lekker. I would hazard a guess and say a good starting point would be around 170-180psi. Measure the sag yourself using the rubber band on the stanchion of the shock aiming for 20-30% depending on what you want out of your rear shock.

[Craig Armstrong]

It's obviously different for everyone amd every bike, but 90psi is waaaay too little for your weight. Something is not lekker. I would hazard a guess and say a good starting point would be around 170-180psi. Measure the sag yourself using the rubber band on the stanchion of the shock aiming for 20-30% depending on what you want out of your rear shock.

 

After measuring, it seems that my sag is sitting somewhere between 20-30% at 90 psi...

I guess all is fine then.. I wondered if my shock pump was reading wrong, but it seems to read accurately on my fork. 

[ABrooks]

 

Pretty good way to easily setup rebound and other suspension settings. Will check mine later on, also used the autosag feature. I weigh a bit more, but should indicate if your autosag works correctly.

[BaGearA]

Leave that auto-sag K@k , set with the oring 

 

what bike is it ? 25% for xc 30% for trail or enduro 

 

90psi for 75kg is way off , even with A massive compression tune it should be more than that 

 

I weigh roughly 70kg kitted up and run 154psi 

 

have your shock checked out if you have A shop that knows suspension , make sure they don't just say they know suspension 

 

 

 

lastly although I hope Im wrong , check that the shock is unlocked , Blue lever away from the valve ( towards the valve is always closed on fox inline  shocks )

[Matchstix]

It depends on the volume of the shock I weigh around the same, depending on the compression tune of the shock 90 is possible. I run 120 psi for more or less the same weight after a tune from RBC with 20% sag before the tune I ran about 90

[Matchstix]

Ps. I have always wondered why its called autosag if you have to deflate it. Its not auto then is it?

[Craig Armstrong]

What exactly is a compression tune? I bought the bike second hand, so I don't know what modifications might have been done to the shock.

If the compression tune is an actual modification to the internals, I suspect I might need to change it again to suit my weight and riding. What is the aim of a compression tune?

 

PS: The bike is a 2017 Specialized Camber

[Mawbs]

before you started we assume you pumped the shock to approx 215psi ( weight + 50psi ) 

[Craig Armstrong]

before you started we assume you pumped the shock to approx 215psi ( weight + 50psi )

Funny you mention that. Does it matter what pressure you start at before using the autosag?

[Mawbs]

Funny you mention that. Does it matter what pressure you start at before using the autosag?

 

yes it does, and once you have done autosag then recycle the shock ( work it up/down a few times) then check the sag * ur pressure 

[DieselnDust]

Funny you mention that. Does it matter what pressure you start at before using the autosag?

 

 

Yes it does matter a great deal. the negative chamber has to be charged so its best to start  working the autosag from around 100psi. The bikes manual should have the procedure.

Scott's NUDE shock has a similar requirement whereby you inflate to 50psi, then cycle the shock till you hear the psssst sound of air bleeding into the negative chamber. Repeat every 20-30psi till the shock maintains pressure after cycling it through its travel.