Super helpful video, if only i could find this video before i purchase my new bike!
@donjf124 жыл бұрын
all these vids are amazing, you have a knack for explaining and showing things in a way that's easy to understand. If possible it would be great to take a look at the Propain mountain bike suspension design. Thanks for the great work
@andrextr4 жыл бұрын
Thanks my friend! I have now a website where I provide custom bike analysis reports, if you are interested in any Propain bike give a look here: www.andrextr.com cheers
@Ziak_7 жыл бұрын
I love when you say "leverage ratio"
@andrextr7 жыл бұрын
+Math' lol :D it was my first vid
@Ziak_7 жыл бұрын
andrextr I can't believe... it was very interesting !
@bigredactionsportsstuff12457 жыл бұрын
This guy should make Algebra 1 tutorials. With transition slides like that, he could amass a following among pre-adolescent males in no time.
@andrextr7 жыл бұрын
Lol. I don't like algebra :D
@Themilkmanskid. Жыл бұрын
I'm in the process of learning about my new bike that has a back air shock, and find this vid very useful in conjunction with the video on progression. Really great material and will try to think about this when I set my bike up for different terrain conditions.
@beholdasatan7 жыл бұрын
LOL I was still listening at 5:20 - excellent in depth video, thanks
@jamesmarshall75514 жыл бұрын
Nice job keeping us engaged with the leverage ratio.
@koopatrpa8 жыл бұрын
Thank you so much for these videos. I have been looking more a long time for a resource that provides a simple but comprehensive explanation of suspension behavior.
@andrextr8 жыл бұрын
+Alex Zondlo Thank you Alex! :)
@stoenchu1228 жыл бұрын
Very good educational video and need more views
@andrextr8 жыл бұрын
+stoenchu122 Thank you! I have more 3 episodes of this. In the nexts weeks I will upload more (I have more 6 or 7 videos to do like this one :D)
@williampeircedrums3 жыл бұрын
This is awesome! Totally geeking out on this right now
@bsftree8 жыл бұрын
Thank u for all yr effort in such easy video to learn. And not only this video.., u deserve more subscriber.
@laurenthelfer91485 жыл бұрын
That s how youtube should be...this is so precise and instructive...total opposite of the youtuber generation
@andrextr5 жыл бұрын
Nerdtube 🤓😄
@laurenthelfer91485 жыл бұрын
@@andrextr i can also see @5:23 that you are a person of taste. I would not make any better choice there too...
@PhongVo6668 жыл бұрын
Thank you for the these great stuffs you've been doin' \m/
@gerritmai63933 жыл бұрын
Thank you very much Andre to understand everything and being now able to pick up all the time the right rear shock.
@brunoraffo6726 Жыл бұрын
Do you know the Rocky Mountain ETSX 10? (From the 90's). Is that one a progressive suspension?
@warthur678 жыл бұрын
Most instructive video I have ever seen !
@andrextr8 жыл бұрын
+Arthur Fritz Thank you! I have more episodes :) Bye
@michaelfoxworthy97248 жыл бұрын
Excellent stuff. Thank you.
@rattlesnaker8 жыл бұрын
Great video Very informative Looking forward to more videos
@dhanushkumar47983 жыл бұрын
What are all the design calculations required to design the front telescopic fork and rear monoshock suspension. Since we are designing a street chopper type bike .
@unpocodetodofuerzayhonor60614 жыл бұрын
👏🏼🙌👌
@gustavomendss8 жыл бұрын
Parabéns pela iniciativa André ! Ando de DH e nota -se como esse conteúdo é escasso pela internet. Com certeza será muito útil para diversos ciclistas .. Abs
@andrextr8 жыл бұрын
Obrigado Gustavo. Abs :)
@StandardSublime8 жыл бұрын
So Good! Thank you
@borisklimov10308 жыл бұрын
thanks for the details in the explanation!
@ethantang6282 Жыл бұрын
I was a little confused with the equation "rear suspesion = shock/LR", I'm guessing "rear suspension" means the force required from the ground to move the rear wheel? My casual bike terminology makes me view "rear shock", "shock", "rear suspension" all as the same thing
@andrextr Жыл бұрын
Exactly. Force at wheel = force of shock / LR
@PAPAxMEINK6 жыл бұрын
VERY VERY nice leverage ratio
@brandoncheung7282 жыл бұрын
Very interesting stuff, I've been looking for videos going into more detail about the suspension. Just bought you a beer, enjoy!
@andrextr2 жыл бұрын
Thanks my friend! Enjoy the content in my channel 👍
@JP-wc8ky8 жыл бұрын
How do I determine if my particular bike has a Regressive, Linear, or Progressive rear suspension ? I am riding a 2014 Giant Trance1 29er, do you know type (R,L,P) rear suspension this bike has ? Very NICE Leverage Ratio @ 5:30 (I was listening) :).
@heinzketchup33238 жыл бұрын
+John Philkill You can tell best by deflating the shock a bit (just enough to be able to compress it with an elbow on the seat), and pushing down on the seat and feeling how the stroke changes through the travel.
@JP-wc8ky8 жыл бұрын
+Heinz Ketchup Thanks, I did a search and the Maestro suspension is suppose to be Linear, which is personally what I like. Thanks for the reply.
@andrextr8 жыл бұрын
+John Philkill Hi John! You dont need to dismount the bike. You can use the linkage simulation software in the description of the video. However the demo version only has older bikes in database. In the future I will cover more topic about rear suspension and linkage software. Your Giant trance in particular is a slightly progressive frame (LR diff for trance is +0.5, check the table @ 08:28 ). That means that you can easely use all the travel of your bike and have a little of bottom out resistance. Which is the ideal behaviour for a trail / AM bike.
@andrextr8 жыл бұрын
+John Philkill One more thing, you cannot predict the progressiveness of a bike based on the type of system (FSR, maestro, etc). I will made a video in the next days showing that you can have frames with totally different behaviours within the same system. Stay tuned :)
@heinzketchup33238 жыл бұрын
andrextr All of that is true, but you still need to remember the shock, there are many different feels to many different shocks
@anymanusa7 жыл бұрын
Thanks for these great in depth videos.
@MrSandieman6668 жыл бұрын
really like your vids, do you have any background other than biking though? cheers from rocky Tromsoe, Norway.
@andrextr8 жыл бұрын
+Sander Bærøy Johansen this is just a hobby, my main field of expertise is not related with this (life sciences).
@andrextr8 жыл бұрын
+Sander Bærøy Johansen btw, we had previously some costumers from Norway riding here in Portugal (at Weride.pt) bye.
@pitcrewsports10 ай бұрын
Thanks for a Great Explanation of the MTB Suspension! Absolutely Helped me a Lot! The drawings & examples where what I needed to understand! Awesome!
@SaFteiNZz5 жыл бұрын
your a monster ty
@ArmaniFlyHigh2 жыл бұрын
so how about MTB Progressive Springs vs linear springs.....can't find any explanations
@andrextr2 жыл бұрын
Besides the mechanical leverage from the linkage, progressive springs can further increase overall progression by +20%. They are good to prevent frequent harsh bottom outs. But if you dont have many bottom outs they are not good because they will prevent to use final travel (you get useless final travel)
@ArmaniFlyHigh2 жыл бұрын
@@andrextr Thnx for the explanation..
@scalercenthusiasm69834 жыл бұрын
love your videos!
@ZillaYT6 жыл бұрын
Very geeky, love it!
@lcmtn5 ай бұрын
Very helpful!
@Carecovzki8 жыл бұрын
Muito interessante sem dúvida. És o gajo ideal para perguntar sobre a Pitch já que tens uma. No caso de querer fazer futuro upgrade no amortecedor o que devo procurar? Pequeno volume sem piggyback tal como o X-Fusion de origem?
@andrextr8 жыл бұрын
A pitch é pouco progressiva, podes comprar com piggy mas a lata convém ser pequena ou usares espaçadores. Há alguns q ainda podes dar progressividade extra através da compressão, como o caso dos DHX (ajuste bottom out). Proxima semana vou fazer um vídeo com a pitch ;)
@lzy2456 жыл бұрын
Hi Andre, could you help to find out is Canyon Spectral 2018 27.5 is a R/L/P?
@squaremeat7 жыл бұрын
Could you please add English subtitles? I am deaf and would like to benefit from a video like this. (The auto-generated subtitles are no good- try it for yourself)
@andrextr7 жыл бұрын
Hi! Thank you for the interest! This video has subtitles in portuguese that I made, select the option (Translate automatically and then select english). This will translate my subtitles, I checked and the quality if good. If you choose the "auto-generated subtitles" option, it will use the sound of my voice to create the subs, and that not good indeed. I have more videos with subtitles, but I stopped to doing them since they took like 1-2 hours to do....If you have any question feel free. Bye
@squaremeat7 жыл бұрын
andrextr I checked as well and found the quality to make it unwatchable. auto-generated captions are not captions.
@RealizeEditing16 жыл бұрын
@@squaremeat Im aware this is a very later reply, but what andrextr was saying was to choose portuguese under subtitles, then choose the 'auto-translate' button and select english. The button is greyed out before you choose portuguese which can be confusing. You may of already figured this out but I thought i'd comment anyway
@dhanushkumar47983 жыл бұрын
Which simulation software is which you use ?
@andrextr3 жыл бұрын
Linkage X3, I have a video about it
@drkc89703 жыл бұрын
Hi, your videos are really good... At the end of the video u mentioned if the bike is progressive then placing a coil shocx will b progressive but not support progressive compared to air. Is there a big difference?
@rajvardhanshivle6 жыл бұрын
My rear wheel has also downward travel from its initial position...is it normal? If not, what to do about this?
@nwimpney6 жыл бұрын
These are really great videos, but you should run the audio through a high pass and/or compressor to knock down the plosives.
@jeep19625 жыл бұрын
Nice videos, with a good and simple explanation. Could you analyse the Kona coiler suspension? Thanks
@amhtxc29607 жыл бұрын
Great collection of very inforamtive videos, many thanks!! Air shock offer much more resistance to initial movemente, meaning they are stiffer, less sensitive in the initial part of the travel. This is also an add-on modification to the LR curve, right?
@tayfunatwork7 жыл бұрын
Very helpful, thank you for that. I saw all your vid's and did not find anything about for example the Commencal (Supreme) DH V3. Do you have some facts and information about that? Thanks in advance
@andrextr7 жыл бұрын
Hi. Thank you. Yes, Commencal DH V3 has a progressivity of 35%, an average anti-squat of 130% for a 36T chainring, and an anti-rise of 90%. The high anti-squats and anti-rises are due to the quite high position of main pivot. Bye :)
@tayfunatwork7 жыл бұрын
Ok, very good. Thanks a lot Could you please summarize the meaning of this points and facts. Otherwise I have to watch everything again ;) Greets
@tayfunatwork7 жыл бұрын
What does it mean for biking if you analyze the facts. BTW, I have a chainring with 34 and single speed kit ;)
@andrextr7 жыл бұрын
It means that it has a normal progressivity for a DH bike (progressivity is the resistance to bottom-outs). It also means that the bike pedals relatively good due to the high anti-squats in comparison with other DH bikes (however, the antisquat is not very important on DH since you dont pedal much). And finally it means that the rear braking forces also stiffen a bit the suspension, reducing a bit the traction when braking, when compared with other DH bikes with lower anti-rises. Bye
@tayfunatwork7 жыл бұрын
So the best method is not to brake a lot ;) OK, thank you very much. Would be great to see also a vid from this bike. The commencal is quite popular here. Bye
@joviallmountain26766 жыл бұрын
Thanks you, Alextr. Nice vids
@123456789155158 жыл бұрын
hi there, may i ask i have 190mm eye to eye rear shocks can i replace it with a 200mm eye to eye rear shock.
@andrextr8 жыл бұрын
+Ong Wei Heng its not a good ideia. It can work but you will change drastically the geometry of the bike and you migth get some clearance issue.
@123456789155158 жыл бұрын
+andrextr hi thank you for the reply
@art.alagna.design8 жыл бұрын
Hi Thank you for that. Would you be able to get a Giant Trance 27.5 analised?? thank you!
@gillenzfluff83808 жыл бұрын
lol analised.
@andrextr8 жыл бұрын
you can found it here: kzbin.info/www/bejne/pJ3HYWatnMiVbZI
@art.alagna.design8 жыл бұрын
thank you so much
@kierencheng66855 жыл бұрын
geeking out here. finally know how rear shocks work
@SingleTrackSurgeon7 жыл бұрын
Please do more videos! I absolutely love these!!!
@SingleTrackSurgeon7 жыл бұрын
Also I was still watching at 5:21
@andrextr7 жыл бұрын
+Single Track Surgeon Thanks! Unfortunately I have been very busy lately, no much time for videos but I will try do more soon ;) bye
@stefandjalic6 жыл бұрын
hey Andre, Got one question: >>At the begining of video there was analysis of one particular bike, and from dividing his rear wheel travel with shock stroke we get 2,5 average Leverage ratio, which means that for every 2.5cm of rear wheel travel the shock will compress 1cm. For that bike at the beginning of the video you said that at the beginning of shock travel his rear wheel needs to travel 3cm for 1cm of his shock compression, and when we are closing to the top/end of the shock travel we need less rear wheel travel for the same 1cm shock compression (at the top/end of shock travel we need 2cm of rear wheel travel for 1cm of shock compression) and so in that particular case you said it that is a progressive bike. So, about that, i'm a little confused. If you need higher LR at the beginning of the shock travel and less LR at the top/end of shock travel, isnt that Regressive type of progressivity ('cause at the end of the shock travel we need to make less force to the rear wheel and, because of that, it will be easier to bottom-out? ) Maybe i didn't understood nicely the whole thing so can explain me ? p.s. hope you can understand what i'm trying to ask. somehow the beginning part of video and the part of video after that girl picture (when you showing those three progressivity diagrams) are contradicted with each other, or maybe that contradiction is just in my head...
@andrextr6 жыл бұрын
Hey! Check this newer episode, it will answer your question ;) kzbin.info/www/bejne/omm5eHieaK6VhZo
@dandiaz52388 жыл бұрын
Can I install a longer rear shocks? stock shock measures 6.5 inches i2i and want to try installing a 7.5 What are the effects on geometry and travel with 120mm front suspension. Ride is only for XC and light trail.
@andrextr8 жыл бұрын
+Dan Diaz Changing the i2i length changes the geometry drastically. Increasing 1 inch in the i2i will extend the rear wheel by around 3 inches (since the inital leverage ratio on most bikes is around 3). This causes the BB to lift around 2 inches and the headangle became 3 degrees steeper... (you can detach the shock on your bike and increase 1 inch the i2i length just to see the effect...). Bye
@josephmcginity86763 жыл бұрын
Wow I’ve never seen such a nice leverage ratio
@bigmac16137 жыл бұрын
Hey there, I know this is an older video, but I was hoping you might be able to tell me what CAD program was used to demonstrate the leverage ratio. Also, what an amazing library you have to educate people about full suspension bikes. Cheers!
@andrextr7 жыл бұрын
It's Linkage X3, I have a recent episode about it. Bye
@wackawacka123456 жыл бұрын
Yeah great thanks for the video. Get in contact with very famous German Freeride Magazin. They need some support as their tests get more and more unprofessional. Your knowledge would help those clowns to appear a bit more professional.
@andrextr6 жыл бұрын
Thanks. Lol. I'm already collaborating with VitalMTB ;)
@thecaptain79608 жыл бұрын
Do you have a video that shows and explains the various frame designs and what kind of leverage each frame design is?
@andrextr8 жыл бұрын
In episode 4 I show you that you can get very different leverages for the same system. So, it's not easy to predict the progressivity of a bike just by looking at it. You have to do a model simulation :) Bye
@jean-francoisberaud90738 жыл бұрын
thank you very much!
@simbico8 жыл бұрын
Serious knowledge, thnaks for sharing!:)
@andrextr8 жыл бұрын
+simbico Thank you my friend :) More episodes coming next weeks bye ;)
@maboba5 жыл бұрын
Good Job! Thanks!
@BladeFliper8 жыл бұрын
Great video, I learned a lot from you videos man! Can I ask you what type of suspension is my bike (progresive, regressive or linear) the bike is DaBomb Castle Bravo 2009, i can't fine anything about this bike :(
@andrextr8 жыл бұрын
Thank you! Is this your bike (bikeshop.com.ua/images/product_images/info_images/dabomb_castle_bravo.jpg) ? If so, I'm sorry to inform you, but that bike is very very regressive (LR starts at 2.0 and goes to 3.7)...Never saw anything like that, not sure why DaBomb build a bike like that... That means that the bike is quite hard at the beginning of travel and it bottoms outs very easily... For XC and climbs it's good, for more hard riding it's not the best. Do you confirm these results? Anyway, you still can have fun with it :D Bye
@BladeFliper8 жыл бұрын
Yes, this is the bike frame :)
@josecarvalheiro61116 жыл бұрын
Great video! Obrigado!
@themechanicaladvantage8 жыл бұрын
Totally not what I came here for, wanted to learn difference between rebound and compression & set up but found this downright awesome. Hope the rest of these videos are just as good. Wow.
@andrextr8 жыл бұрын
Thank you. Yes check episode 5 and 7 for setup tips ;) enjoy
@themechanicaladvantage8 жыл бұрын
+andrextr Extremely well done. I have a basic knowledge on shocks and the physics behind them but got my first mtb with high/low compression and a rebound that works properly. These were very helpful and I appreciate the time you put into them. Thank you
@cesarmatono81948 жыл бұрын
Have watching your vídeos for a while and I think very nice, very elucidative. Nice job! A question about the informations on this video. How I can find the instantaneous leverage ratio from initial and end stroke as you mention on video?
@andrextr8 жыл бұрын
Since most bike manufacturers don't share that info, you can only know it by doing a model simulation in Linkage X3 software. Or you can visit this blog which has a big database of bike analysis (it's not mine): linkagedesign.blogspot.pt/
@cesarmatono81948 жыл бұрын
Thank you very much!
@davidolivercortadellas6988 жыл бұрын
Hi, what computer programme did you use in your leverage ratio explenation?
@andrextr8 жыл бұрын
It's the Linkage X3 (www.bikechecker.com). Bye
@davidolivercortadellas6988 жыл бұрын
+andrextr Ok thanks! :)
@thiagogabriel5398 жыл бұрын
po mano tu explicou muito bem. O ep. 2 seria o "forces & SAG"? Aguardo sua resposta, abraço!
@andrextr8 жыл бұрын
Oi. Sim é esse. Tem aqui a lista completa: kzbin.info/aero/PL4tH8eqoJoZ-puE8n0kDNVdCuKL7ySEAv :)
@shreeramlaveti26116 жыл бұрын
on wh software u r doing these calculations
@andrextr6 жыл бұрын
In this one I only used Excel ... for others I used Linkage X3
@heinzketchup33238 жыл бұрын
Is this software available for mac as well?
@andrextr8 жыл бұрын
+Heinz Ketchup I think is only available for windows.
@mrcarlincool8 жыл бұрын
hahahaahaha loved it man! Keep them coming!
@andrextr8 жыл бұрын
+Abraham Castellanos Thank you :D More videos coming :)
@8wheelsbootingfruit6 жыл бұрын
5:28 hahaha
@Ghrostillo8 жыл бұрын
What is your opinion about the Scott Ransom 10?
@andrextr8 жыл бұрын
Ransom had a very regressive frame, never tested one, but accordingly to the model I would guess that it's very easy to bottom out... specially if you are an aggressive rider. I know it has a specific shock, but I don't believe that it can solve completely that problem... not sure if you agree or not :) Bye
@Ghrostillo8 жыл бұрын
I don't own this bike, I just saw one for 660€, but I also checked the geometry with the software and considered not to buy it :) And I heard that servicing the shock is quite expensive. I've never had a full suspension bike but I think I'm a little bit too aggressive because I bottom-out my rusty low-end coil fork on my hardtail sometimes 😓
@arronmartin2138 жыл бұрын
garm
@bike_build_wander8 жыл бұрын
Best leverage ratio on a hardtail ever. Great stuff, thank you for your time.
@michaellux93648 жыл бұрын
Thanx for your videos about suspension! I saw and read a lot about it before, but your vids gave me the right kick for finding the right setup! Now gravel roads feel like fresh tarmac. ;-) Well done!
@andrextr8 жыл бұрын
+Michael Lux thanks :) have fun
@andrextr8 жыл бұрын
+Michael Lux thanks :) have fun
@ysgurjar7 жыл бұрын
Awesome ! Can you please tell me name of the software?
@andrextr7 жыл бұрын
kzbin.info?o=U&video_id=Ozlu1I_BHLo
@andrextr7 жыл бұрын
kzbin.info?o=U&video_id=Ozlu1I_BHLo
@andrextr7 жыл бұрын
kzbin.info/www/bejne/havPpmR_lKd7gtE
@klisurski8 жыл бұрын
I had Specialized Big Hit similar to yours. However I felt it is overkill, as I cannot ride it at its maximum an it felt heavy and hard for pedaling for my style of riding. So I sold it and bought a local brand 160/160 enduro bike with high-end parts. It definately feels easier for pedaling, however I have noticed an annoying bug/feature- when the rear end compresses too hard my gears switch and then return to normal. I checked the cables- they look ok. Probably it is matter of anti-squat which causes chain movements that were not present with the Big Hit. Can you help me assess the geometry as there is no info for this model?
@andrextr8 жыл бұрын
Hmm... It's very likely that the cables are getting pinched against the frame when the suspension compresses. Remove the shock and check for any problems with the cables... You might need to increase the length of the cables... Otherwise I would suggest to check the chain length when suspension is fully compressed (although I don't think this is the problem). See the manuals of the derailleur it shows how to get you chain length correct in a FS bike. But I would bet more on the first suggestion of the cables.
@BladeFliper8 жыл бұрын
Thank you I will confirm that. the bike has almost zero small sensitivity and blow all it's travel relatively easy. that's the reason why I'm asking! Cheers my friend!
@andrextr8 жыл бұрын
That matches perfectly with the leverage ratio obtained by the simulation. In fact I never saw anything so regressive like that!... I guess the person that designed that frame missed the leverage ratio classes eheheh. Bye
@laedie6 жыл бұрын
Nice tutorial, but what's with the creepy perving? You want to know why more women don't do mountain biking? This kind of shit is why.
@andrextr6 жыл бұрын
Sorry, it was a childish inoffensive joke. When I did this videos I didn't knew they could reach so many people. Don't need be mad because of that :) Cheers.
@laedie6 жыл бұрын
Thanks for replying, it helps that you've said sorry. I do want to point out to you and to anyone else who might be reading, that even small childish stuff like this adds up to a bigger problem. It's not uncommon to see "jokes" like this in online mountain bike discussions, and in addition, the majority of the industry publications depict and cater for men (largely ignoring that women mountain bikers even exist). It all adds up to make me feel like I'm not welcome at mountain bike events, and that I need to be wary of the men there. I carry on because I enjoy the discipline and ride with some lovely people, but this stuff has to stop, and the small things do matter. However, thank-you for making this video - I learnt a lot from it and I've been watching some of the others in the series too (and I'm relieved that so far there's been no more perving in any of them).
@andrextr6 жыл бұрын
The company bellow is not mine, but it's from close friends, as you can see WE do welcome girls into the sport ;) www.weride.pt/girls-camp/
@laedie6 жыл бұрын
Yes, there are a number of initiatives like that, and they're great and they do make a difference. I'm getting the impression that you may be in denial about the importance of the effects of "jokes" like yours. What I'm telling you is that they are important. They make people like me feel unwelcome and wary. I'm asking you not to do it again. Can you do that?
@andrextr6 жыл бұрын
+laedie Yes. My newest videos don't have that, only on some of the first episodes. Cheers. ;)