In Episode 19 of Season 2, DIALED checks in with Jordi as he explains the basic function of volume spacers, and discusses when to add or remove them from your fork or shock.
![bigquotes](https://es.pinkbike.org/246/sprt/i/bigquotes-left.svg) | Whether it's a fork or a shock, they all do the same thing...they take up room. Which makes the air chamber smaller. And all they are doing is changing the spring curve. So, you can go from something that's very linear and even the all way through, to something that has a sharp ramp at the end to prevent bottom out.-Jordi |
Learn something new about volume spacers? What would you like to see the DIALED crew breakdown next? Comment below!
It's as simple as that.
Is it a correct use of volume spacers or is there another way to have a good feeling at low speed?
My guess is your fork might be too progressive. An easy test would be to pull to spacer and increase your air pressure. This should increase the ride hight of your fork which might smooth things out. I would also make some minor rebound adjustments. Maybe do some bracket testing with your rebound setting to see if gives you feel you are looking for.
I am not sure that too much HSC is the issue when it comes to small bump compliance. Before spending money making that change I would shop for some other knowledgable opinions.
lecriquet: in my SC 34 I am running 1 spacer and 73 psi.
I kind of like it but I am far for being an expert so any help is welcomed!
You might be searching for the impossible.
I do have a brand new 34 with grip 2 dampener sitting in a box waiting for a frame. I am curious to see how it performs relative to the Fit 4s.
I mostly run on not too demanding trails, but 60 or 70 km with a fork not working at all on small bumps was really too hard for my arms and shoulders. I first lowered the pressure to get small bumps compliance without adding volume spacer but the fork dived under breaking. Also, going down with a fork eating all the travel on the first rock was just dangerous.
That is the reason why I added the volume spacers.
But it's still not perfect because my sag is not correct.
I am super happy range of performance of a Step Cast 32 with a Fit 4 on an XC bike. But I do find it really difficult to make the forks on trail bikes work on small bumps when climbing and offer the descending performance I am looking for. High front ends, slack angles, and short stems put very little weight on that fork when climbing.
Have you tried setting up your bike so that you have a bit more weight on the front wheel while climbing? On my XC bike which has a slammed and long stem the fork feels great on climbs, flats and moderate downhills, where as on my Enduro bike the fork feels terrible on the same trails.
I get the idea. Unfortunatly my saddle is already full forward.
Is it worth getting one?
I'm reasonably well clued up on suspension settings, but would love to know your opinion on hsc vs volume tokens. All other settings are reasonably straightforward, but hsc/vol seems to have a lot of crossover. Many people seem to just add tokens in order to be able to run 0 hsc, while I feel this leads to suspension that feels like you are hitting a brick wall at around 3/4 stroke. I'd like to know your thoughts on how these two settings interact and the different situations they deal with.
Negative volume reduction decresses its affect over the first 3rd of the stroke making it feel more supportive while making it possible to use lower air pressure.
Think of an air spring with positive and negative springs balancing (net 0 force on piston) move it one way and positive side increases and negative side decreases creating the spring rate. If you make the negative side smaller the rate at which it decreases pressure is faster making the net spring rate firmer quicker. (I.e. supportive) at cost of small bump few mm into travel.
Also that topaz (and suntour triair) are basically a monarch plus. Some minor internal changes. (Beside external aethetic)
It seems like every average rider installs multiple volume spacers for no reason other than they are almost a trend.
I'm 180lb ish and I've always removed volume spacers from forks and shocks...never had a problem with suspension not being progressive enough. I seem to be able to always find the sweet spot with PSI to use all/most of the travel when needed without excessive diving or bottom outs, etc.
Not suggesting it's unnecessary or not a useful tool for lots of people..just not for me.
I just experiment with feel more than anything..PSI and rebound are the two things I find most useful.
Sag is a way more reliable adjustment than PSI since the damper compression rate is set off that and the resulting spring rate, not PSI. PSI in itself is meaningless.
When I've bothered to check SAG I'm usually 33-35%.
To qualify, I do occasionally set up my SAG/or check after a few runs..That's all I've needed to do to get my suspension feeling the way it should.
Thanks for the dialogue!
Cheers