The Tuesday Tune Ep 19 - What Your Rebound Damping Does
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- เผยแพร่เมื่อ 4 ต.ค. 2024
- The Tuesday Tune is back for more suspension nerdery!
This week we take a look at rebound damping and how it affects the way your bike behaves, particularly the conflicting demands between running it slow enough to be controlled, but fast enough to maintain traction.
I am the luckiest dork ever to find this series of suspension tech discussions. Thanks a million. These are fabulous.
Very glad your giving us another season of this !
no easy answers, you must work through it and experiment, Steve never shies away from nuance. this was amazing.
Immediately clicked, it's freaking awesome that Steve is back!
My experience: Slow is always more stable. I always keep it slower then needed just incase. Fast = to much unsettling.
Thanks for the explanation !
Thank you Steve for the entire education at your channel. Keep up the great work! Looking forward to next Tuesday :)
Thanks so much for your time and efforts putting these videos together. It’s the best information I have found for amateur suspension nerds in training.
Man I wish these tutorials were around when I was wheeling my Honda 125GP! 😄 Great, relevant info and educational too. 👍
Excellent!! Thank you very much! Am not a biker but this translates perfectly to understanding my car suspension for better track performance. Awesome job. Most car suspension "gurus" cannot explain it as succinctly as you have in these videos. Thanks again.
Ive watched several of your suspension videos. Ive not seen any better on YT. Anytime I get a new frame, it takes me months to find the perfect settings. There are so many variables with a full suspension MTB that I doubt 75% of the people riding are truly able to get the most from their bikes. I get off on the nuts and bolts aspect of the sport almost as much as riding. Having the right settings makes such an enormous difference in the fun aspect that there is probably an opportunity for a small business around here doing on the trail suspension tuning for local riders.
Hi Steve, thanks a lot for your great videos and explaining the whole stuff mathematically and at the same time practically. I‘m an engineer and I can’t read or hear the stuff from magazines and manufacturers.
I set my rear shock‘s rebound as the following. Curb test plus one or two more clicks, because then I feel way more safe on my platform pedal, meaning my feet stay put on them, regardless of the terrain.
Thanks - I'd always ridden with fastest rebound (counter-intutively - thank you). Last season I learned that keeping rebound super slow kept the wheels on the ground, which felt great and made the bike waaay more stable. Now I feel like I should start to increase rebound incrementally to find the sweet spot. Appreciate the explanation
The problem is most factory HSR is too restrictive, so you end up using the LSR (the only available adjustment) more open to make up for this. So in many cases, we are "forced" to run very light "rebound". Some rebound circuits are too simple as well (have no HSR function). Classic examples of the latter were old marzocchi HSCV carts and Fox CTD evolution, they had no HSR circuits. But even the HSR circuits on lots of stuff simply doesn't work properly because it's valved too stiff for the rider/bike/leverage. See vorsprung's video on the RS Monarch, their "rapid recovery" rebound is basically the opposite of that, as in it can't function as a high speed rebound circuit because it's too stiff. The talk here is more theoretical, but there's good info there. It gives you some tidbits on how well properly tuned suspension can work.
You guys are back!!!
Im here for motorcycle suspension and i love these videos. Great job explaining. See if you could get a computer simulation on the sin waves for different speeds and damping. Question if you change spring preload does that affect rebound? Will faster speeds also make you want to adjust rebound or compression or preload? Stiffer suspension means uncomfortable slower speeds but planted as a rock faster speeds. Love your videos
Thank you! Researching this a couple months ago regarding fork settings basically all the internet had to offer was "I ride fast so I set my rebound fast." Moto guys weren't much more help.
My personal experience was that the commonly suggested methods in other videos / articles for "ballparking" fork rebound generated results that were far too fast. I'm on the opposite end of the adjuster from where I started and the bike feels great. It is now smoother at speed than it was under the "how to calibrate your pogo stick" method.
It seemed easier to find a starting point to observe and damp oscillation in the rear end by feeding it a square wave input. The front ended up being a bit faster before it wasn't generating additional roughness from trail input but not by that much.
Jacob Albers if you find the right Moto Channel I think you'll find that they are equally as good as any of the best MTB sites as far as suspension set up goes. Let's face it the top MX SX and mxgp teams have some of the best technicians in the world. Öhlins technicians could arguably be some of the best ever
Definitely! The signal to noise online doesn't seem great but I'm starting to find some good stuff :) I should probably check out some books as well.
Any suggestions?
Jacob Albers not Motocross specific, but across the whole Moto Spectrum this is hands-down the best book:
Race Tech. The suspension Bible.
Here's a preview 👍
www.racetech.com/HTML_FILES/SUSPENSION%20BIBLE.html
Jacob Albers another good source of suspension info is Dale Rathwell. 👍
great vid
Love the intro xD
very helpful
Fantastic vid,thank you.
Quick question.
I am running a .06" volume reducer in my optic.good support.
Was mostly running 32 33% sag 140psi.
Bike felt nice and controlled /balanced.
Pedaling average.
If I increased Spring rate/air pressure by another 10 psi (which I did) bike baecame a lot more alive and felt quicker.
Should I slow down rebound to compensate for the increased rate.bike was very poppy and back end kicking up ,or back the air pressure off slightly.
Was after better pedaling (achieved)and quicker ride(achieved) control was lost slightly.
So how many clicks on the rebound? :-)
What about RockShox's Rapid Recovery? Does Fox have similar tech?
It's just a marketing name for high speed rebound circuit, what's ridiculous is that rock shox didn't use it till 2012 or so, and peopple were saying those forks are the best... Well, they weren't, actually they sucked compared to about everything on the market in that regard.
Standard practice from rockshox, their marketing makes out they are the best in the biz but in reality they are average products for the mass market *cough* punters. One thing they do well is user serviceability, the service manuals are pretty good and spare parts not too hard to come by
Is this applicable for the new vvc in the grip2?
No, the VVC rebound dampers are different and this methodology should not be used for those. Start with Fox's recommended settings on their website, they're pretty good for most people.