Forum menu
Ive got fox float r32 the air setting guideline says i should put 85 psi in ,when sat on it and just bounced on on the bike in the garden,i checked the air pressure again and it went down too 70 psi.whent for a ride this morning for a couple of hours knowing i was losing air pressure so i put them too 100 psi,ride was ok,checked them when i got back 75psi 🙁 why ?
Air seals need changing?
When were they last serviced?
Sounds like you either lose some connecting the pump or they're leaking.
OK first thing to try is set the sag ingore what your gauge is telling you use it as a loose guide only, just set the sag.
Second thing to do is ride it & then check your sag.
In my experience of pumps they are all pretty rubbish, & inaccurate, its easy to lose 10psi putting the thing on and off again.
all the seals have just been serviced .... last week!
Did it feel like the forks were softer before you checked? A good shock pump shouldn't let any air out when removing it, but when you attach it the pump chamber will fill with air, and the pressure will be lower than before you attached the pump.
They're not the dual chambered Trek DCRV Fox 32s are they? The second chamber only opens when the shock gets well into it's travel. So you need to cycle the shock, then recheck the pressure.
Because your loosing 15 psi when you reconnect your pump, probably nothing wrong with them!