Is there an even more basic video on this. Maybe disassembling a shock and talking about how each part functions would help explain it all better. Animations are helpful as well.
@@oldstockrobert3814 yes sir it does... it is a relevant impression.. I would like to see however the two concepts aligned to create moonrockshox.... now THAT would be impressive.. imagine the reverse engineering going into that! A shock that has the ability to absorb anti gravity. The research trips alone would be a project in itself.. what with the need for first creati g an atmosphere... I'd put up a hand for test pilot..
Well that made absolutely no sense whatsoever 🤣😂 I am willing to learn everything you can teach, so if you do want to do longer videos breaking down each topic, I'm all ears. It fascinates me 😊
@Henry, one thing to note is that the addition of a negative spring helps overcome the preload in a positive air system. It is not to overcome stiction as you mentioned.
Ty for the video! I´m just getting back into the matter, just got myself a new bike and your tech videos are always a good opportunity to reflect my own antiquated knowledge (wtf im only 37) in order to fill up the gaps. I find it essential to exactly know how my own equipment is working. Commenting on your videos is like talking in a support group: Yeah my name is .... and I admit i love geeking out on mtb tech...
I'm in exactly the same boat mate at 38 I've just recently returned to the sport after about 10 years. Oh how things have changed. So much to catch up on. gmbn and gmbn tech are brilliant.
The "architecture" portion of this video, starting at 9:00, was the most helpful section. I suggest re-making the video by putting the architecture section first, then the rest of the vocabulary explanation I think would make more sense.
One of your best videos. Sadly we don't get to go beyond the basics. Please make an advanced one as well, if you have hours and hours of material still! Good job. something I think a lot of people would watch is a good video of damper service on a rear shock with an ifp.
Great video with very good technical explanations, figures and real cut-off views. Could you explain in a video the different rear suspension geometries and above all the difference between suspension systems mounting the rear shock vertically and horizontally/diagonally please? Keep on doing such a good job! Regards.
The negative chamber isn't under a vacuum, it's just opposing the positive chamber but they're both under positive pressure. You can customize the negative chamber in some forks and it's usually around 20-80psi. A vacuum would actually have the opposite effect and make it even more stiff, it would be like adding to the positive chamber.
@@clarkie005 late reply, but actually that's incorrect. Preload increases the amount of force it takes for the spring to start moving, whereas vvc effectively changes the springrate, meaning the force graph will be steeper. If you know linear equations, it's essentially the difference between the y intercept (preload) and the gradient (springrate). Vvc changes the springrate, not preload.
Normal atmospheric air is 78% nitrogen and 20% oxygen. And the molecules of N2 are only 2.6% bigger than O2. So there’s not that much difference using N2 over air as only 1/5th of the air in air isn’t N2 and that 1/5th is only marginally different in terms of size and mass.
9:52 ?? confusion in explanation there. May i try, it's not the piston that push oil in the expansion chamber, this displacement is the result from the volume of the rod that enter in the piston sleeve chamber. english not my langage so please appologize. thx
I run an ohlins rear shock but it keeps bottom out and loosing air. My question is what are the ideal personal weights for rear shock, would a larger rider like me 110kg benefit from a coil or spacers in my rear shock cheers
I have a question about my specialized enduro comp 2020. I'm looking at swapping my rear shock from the select + to an ultimate but I can't find a shock that has the stanchion eyelid the right way. So can you just release the pressure and turn it?
#askgmbn whats the differece between the SRAM Butter, the dynamic Seal Grease and the PM600 and what should i use for my Revelation RC (2019)and Monarch Deluxe ? Or is the sus Grease from "Dynamic " Just fine ?
#askgmbntech. I have a 2018 nukeproof mega 290 comp and it has a rockshox super deluxe rear shock. For the last month my shock has been losing air as my ride goes on. I am forced to bring a shock pump with me and pump it up at least twice in a ride. I have replaced all the internal seals and it is still losing air. Do u know what is wrong
#askgmbntech I was wondering what you guys think of drilling holes in your frame for bottle cage mounts. I have a 2012 transition blindside and want to put bottle cage mounts on the downtube using rivnuts. Thanks, Liam
I can speak for them, they will say it’s a terrible idea, it can weaken your frame quite a lot. It will also void your warranty, I don’t think your bike being from 2012 will have it though. There are people who have done it but it’s advised not be done but you could try it if you want but doddy has said many times not to drill holes in your frame.
I don't understand most of the videos because on a my first bike, ht. 😂 But watch it anyway. Maybe In a few years, if upgrade to expensive front fork or fullsus this would be useful. Good videos though.
You get more travel on the rear and your wheel/hardware will possebly hit and damage your frame. Contrary to what the other guy says (false) it won't actually affect geo (because same eye to eye) except when using more travel than previously possible.
@@Pienimusta only by allowing more travel, which is the whole point, and as I write only at more travel than previously allowed. So as a whole I would say that geo is not affected as long as eye to eye remains the same. Different eye to eye however would on fact change geo.
In regards to shocks. Why is it normally recommended to run slightly more sag on a progressive frame than a linear one? Why not the opposite as 30% sag at the shock is far more on the wheel travel. Why don’t set the bikes up with a percentage of wheel travel rather than stroke length? #askgmbn @gmbntech
Yo guys, question here: Yesterday I found out the set screw that keeps the rebound knob on my new fork (RS Pike) went missing. Probably wasn't tightened properly at the factory. Miraculously I didn't lose the rebound knob itself, so I pulled it off to make sure I don't lose it. Will I risk damaging my new fork if I ride without this knob in place? (until I get it fixed ofcourse) The hole where it plugs into is kind of exposed at the bottom.
No issues with assembly for me ru-vid.comUgkxHL1v1R3NE5x4KiYfyt8dnQmyNYz7qi5L but I could see where some might benefit from using an experienced bike assembler/mechanic. I'm an older rider starting back after a 10 year break. This bike exceeds my capabilities and has been easy to get comfortable riding. I'm mostly on easy trails with almost no street riding and have not been disappointed with the performance of the bike. My fitness level is far below what I previously rode with and because of that the mileage is going on the bike slowly. While I'm losing weight slowly, the bike seems to tolerate my 220 pounds just fine. The bike has been used by several family members ranging from 5'5" - 5'9".
1 day i will have an double suspension bike................An GT Sensor or Specialized Chamber old for $1K,800-900$.......................................One day
Most sliding systems use two bushings: one at the top, and one at the bottom. Bushing overlap is the distance between these two bushings. More distance (and overlap) equals a stronger and stiffer system.
Like the new #GMBNTech guy Henry in the learning of thes suspension of chocks floats thes diferents series in the #GMBN depending of thes taips of hubliys #Moutainbiking bike's thes tapers and pistons coils oils yuors positions in the geometry 🗣️yyaasickejnoy. Saluds of chile 🇨🇱🤘😀🤘🚵🚴.
Really, straight from describing spring compression rate right into negative air chambers? THEN into compression? Not even gonna introduce the overall anatomy first? Practical demonstration and illustration would be immensely helpful in addition to the lecture would be helpful as well. 👎
