Steve71 said:I'm pretty sure the shock stroke is 2".
Clutchman83 said:Hey guys, ....................... I'm still fuzzy on the purpose of the SPV pressure, how does it work, can I achieve a balance? I know it means Stable Platform Valve, so I'm guessing its a kind of resistance to the compression until a certain pressure is reached overriding the valve and opening up the shock, am I close?
PS - I'm now running 55 psi in an attempt to kind of split the middle, but I still get alot of bob out of the saddle.
in the Manitou shock manual, I think they say not to go below 40 psi!Clutchman83 said:I lowered the SPV to 40 psi and it turned super plush but bobbed terribly when out of the saddle.
You shouldn't be loosing that much air when you remove the pump, just a small amount. I had the same problem with my swinger(s), but there is an easy fix. It seems Manitou doesn't like the screw the internal shrader valve tight from the factory, go to your local auto parts store and ask for a shrader valve tool, tighten that bad boy up and you'll see how much more precise your tuning can be.The guy who said only 5psi can make a big difference is SO right. The difference between my TALAS forks being sweet or lousy is about 3-4psi and about 5psi on my Swinger.
I assume you guys are allowing for the escape of air from the SPV valve when removing the pump. I have to pump in 150 to get 90, just receck it again after you release the pressure to double check it.
No. If you connect the pump after removing it you are looking at an incorrect reading. The air you hear escaping when you disconnect is coming from from the pump itself. There is air in the hose under pressure. When you connect notice that you do not hear air escaping like when you disconnect. If the valve leaks on disconnect then it will leak on connect. I doubt you hear air leaking on connect. When you connect air fills of pump and gauge and affects the reading. The SPV chamber is pretty small and is easily affected when connecting the pump. The main chamber on the swinger is not affected much when connecting. At least on the 7.875x2.0 size swinger I am familiar with.Terrance said:I assume you guys are allowing for the escape of air from the SPV valve when removing the pump. I have to pump in 150 to get 90, just receck it again after you release the pressure to double check it.