Posts
696
Joined
6/9/2020
Location
Orange City, IA
US
Edited Date/Time
6/19/2022 11:06am
Does anyone here refill there own shocks after rebuild or take them to a shop?
Is your questions in regards to doing it yourself? If so, you can get the tank from your local welding supply and buy the unit from Race Tech that allows you to charge shocks. You are going to spend ~$400 to buy cylinder, fill it with nitrogen, regulator and adapter to fill either Schrader valves or needle style.
Another thread with info:
https://www.vitalmx.com/forums/Moto-Related,20/Affordable-nitrogen-tank…
This is the hose I use to adapt the Race Tech fill tool to my regulator on my tank. As good or better than the hose Race Tech sells and much cheaper.
https://www.grainger.com/product/IMPERIAL-Charging-Vacuum-Hose-6X645
IMO, the Race Tech version is a little bit overpriced as I am sure they are just buying them in bulk and marking up the resell price. You can get a comparable industrial grade regulator much cheaper.
I have a local SJ Smith welding supply store and they are great to work with for Nitrogen refills on the tank.
The Shop
I haven't noticed a big performance difference, usually the shock is performing much better since it needed a rebuild anyways. Air is like 90% nitrogen or something. MTB shocks get really hot too.
I just did a bladder conversion. I ran the shock with air from a shock pump (atmosphere) for the first 10 hours. No PSI loss, worked great. I had a buddy fill it with nitrogen thereafter. I literally can't tell a difference and I'm pretty picky when it comes to this stuff.
I can cite a bunch of examples of guys using normal air to fill important suspension bits with zero problems, in moto and in mountain bikes. This is most notable with air springs. Nobody is filling with nitrogen, there are zero problems.
The nitrogen fill is becoming an old wives tale of moto, with less and less of it rooted in science. More and more of it rooted in "this is how we've always done it".
I fill with N2 because I have the capability. I bet some guys run race gas, but pinch a penny to fill with a bike pump. Irony
When it comes to forks , I feel air pressure is more significant effect due to the seals effectice surface area. Seal deflection on a fork is very noticeable.
Pit Row
My question is .... how consistent do you guys want your suspension to be?
I personally hate shock fade
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