Rear Shock Help

[2kracing]

Can anyone tell me how many pounds of nitrogen should be in the rear Ohlins shock

on a 2005 Gas Gas 300cc Raga.

thanks

[nzralphy]

Now if you could weigh the stuff.... probably less than 0.1lbs.

Sorry i couldn't resist that.

If you find out from the Ohlins man please share it... it is likely he won't tell you.

I'd be putting 100psi into it and see how it goes.

[motojojo]

My 04 raga had problems and I installed a bigger spring and that fixed it. I contacted Ohlins and they were helpful.

[jse]

Can anyone tell me how many pounds of nitrogen should be in the rear Ohlins shock

on a 2005 Gas Gas 300cc Raga.

thanks

I haven't been able to find the recommended pressure for the Raga Ohlins shock

(I'm assuming it is generally the same as the 36DR Ohlins) but based on past

experience, I use about 140-145 PSI, which is what I run in a special remote

reservoir shock I built for my 85' TY. Generally Nitrogen pressures are in the

neighborhood of:

Motocross-150 PSI

Roadrace- under 400 lb spring, 200 PSI and under 600 lb spring, 250 PSI

You can vary the pressure but I probably would not go lower than 120 PSI.

The seal relies on pressure to work correctly and the Nitrogen pressure acts

as a secondary spring in a way. The pressure helps to prevent cavitation at

the damping shim stack and piston orifices at high shaft speeds.

As I say, this is only a guess.

Jon

[2kracing]

I got the shock filled with nitrogen today. I found out that each shock has a serial number on it and you need

that number to find out what the proper fill is. It is different for the same shock on the same bike and the same year,

also the number on mine was way over 200PSI.