Yeti 303 DH LIVES!!!
- Thread starter leprechaun
- Start date
No way, i see pictures i know what I see. Just because you have spoken to yeti and have more information than me in no way makes you more qualified than me to talk about the design and all it's obvious flaws(so do you need a deposit now?)James | Go-Ride said:
What's up with the font? You certainly can tell from looking at the picture that it will be more progressive than not, an exhaustive explanation wouldn't be worth my time as you're so dead set on disagreeing though.Damn True said:
I'm surprised we haven't heard from dw on this... usually he is happy to contribute to engineering discussions, even when they are not about his designs. Maybe this work of art left him speechless? 
Ok, this is my take on the axle path.
red lines - is axle path as far as mid stroke.
yellow lines - are just to show how the swingarm actually swings from pointing down to level at mid stroke. (rearward axle path)
gray line - is my thought on the last 3" of travel when the upper rail moves rapidly forward.
Start discussion/bashing/agreeing/yada yada.......
red lines - is axle path as far as mid stroke.
yellow lines - are just to show how the swingarm actually swings from pointing down to level at mid stroke. (rearward axle path)
gray line - is my thought on the last 3" of travel when the upper rail moves rapidly forward.
Start discussion/bashing/agreeing/yada yada.......
Attachments
Echo, I called Victor and told him we both want one 
your welcome
your welcome
That or he's looking for any patent violations so he can sue.Echo said:I'm surprised we haven't heard from dw on this... usually he is happy to contribute to engineering discussions, even when they are not about his designs. Maybe this work of art left him speechless?
Santa Cruz, dw, Yeti. Competition just keeps on keepin' on!
You're a jerk! I need another jobInstigator said:Echo, I called Victor and told him we both want one
your welcome
so ok interesting design, what i dont get is what it wrong with pivors and now we got rails?
Echo said:I'm surprised we haven't heard from dw on this... usually he is happy to contribute to engineering discussions, even when they are not about his designs. Maybe this work of art left him speechless?
He may be [gasp] working.
Hey, that's the way marketing works. You always need something new and different.math2014 said:
Now, nobody flame me - obviously, none of us really know how well this will work, and maybe it'll be fantastic. But there's no denying that a lot of these will sell based on the fact that, hey, man, it's got rails!
kidwoo said:Hey that sounds like a haughty spirit. Are you getting ready for a fall?
Maybe someone with a quick cad plot can show the axle path.
I had an unearned fall this Saturday on Dogbone. So the preceding hautieness is in a sense, already paid for.
Word, BV,binary visions said:
day by day you grow wiser, and i am not joking... this may prove to be a terrific bike, so far it is hype....
That's all I'm sayin.math2014 said:
Not knockin the bike or Yeti, just getting a good laugh from the "NETsperts".
I am pretty sure Yeti have been working alot with this project. I guess all the "problems" people are talking about here, are solved a long time ago. I also think they have been testing real life proto's for a long time, and it works good. When they finally decided to produce the $hit, it WORKS, of cource!!!! Nobody knows much about durability in the long run, with all kind of abuse done by all kind of DH punks.
Personally, I think it looks cool.
E
Personally, I think it looks cool.
E
This bike may ride like a jet-powered barca-lounger for all I know... but readiung things like "negates pedalling and braking forces because they're perpendicular to main rail" makes me want to kick puppies.
That load of bunk means either the engineer didn't know what he was doing, the marketer didn't know what the engineer was doing, or nobody knew what they were doing, and you're looking at another piece of trial-and-error, make-it-look-cool-and-then-let-pro-riders-adjust-the-geometry bicycle design.
This bike has pivots just like any other bike. This bike has an axle path just like any other bike. This bike has instant centers just like any other bike. Pedalling and braking will influence it. I don't know if it will be in a good way or a bad way, but in SOME way.
(here's a little engineering esoterica for you: it also happens to be a 4-bar...)
That load of bunk means either the engineer didn't know what he was doing, the marketer didn't know what the engineer was doing, or nobody knew what they were doing, and you're looking at another piece of trial-and-error, make-it-look-cool-and-then-let-pro-riders-adjust-the-geometry bicycle design.
This bike has pivots just like any other bike. This bike has an axle path just like any other bike. This bike has instant centers just like any other bike. Pedalling and braking will influence it. I don't know if it will be in a good way or a bad way, but in SOME way.
(here's a little engineering esoterica for you: it also happens to be a 4-bar...)
LOL!
Good post.
Good post.
Kind of reminds of of specialized.............ohio said:
I like the bikes but can sit there climbing, watching my shock move around on smooth uphills...regardless of where the arrows point on the schematic drawings..Looks to me like someone took some notes looking at the marin funky 4 bars that came out a while ago and just found a neater way to do it.ohio said:
I still want to hear the sound of those tracks when riding the thing. Filing cabinet analogies may have some merit.
ohio said:
Thank you for saying that this bike has pivots. I ended up not posting something that I typed earlier regarding doing bad things to kittens if anyone else said something about this bike having no pivots.
Actually, if you want to be really anal we could say that all these four-bars, including the Yeti, are 6-bars (the shock body and shaft are 2 links :nuts: )
Now, if this bike had about 50 speed-holes ala Nicolai, then we would be looking at the best bike ever.
What did I do to get on your "ignore" list? :eviltonguInclag said:
Hahakidwoo said:What did I do to get on your "ignore" list? :eviltongu
It's just that when you have the infamous Professor Robert L. Norton teaching you Kinematics through the books that he wrote and computer programs he designed, you begin to look at trivial and stupid things like bike suspension in a different way
The travel where you will be pedaling it lenghtens the chain. I.Ei chain pull, pedal kickback. that is ok in moderation. but you will feel the suspention move through the chain. like a orange, mabey less.ohio said:
seems like a lot of work for about the same axle path as a mid-high pivot.
i think it is a selling point. and the way you guys are reacting they will be thrilled.
I think I understand what you are saying, but I can't help wondering if it is beer 30 there.
Given, my kinematics studies involved only chemicals, but even I could see little round things on the drawings that looked like they rotate.Inclag said:Haha
It's just that when you have the infamous Professor Robert L. Norton teaching you Kinematics through the books that he wrote and computer programs he designed, you begin to look at trivial and stupid things like bike suspension in a different way
It's just a 4 bar.
There are, after all, four rails (bars).
There are, after all, four rails (bars).
Figured something was up.bcd said:don't drink, but............ i am super tierd
Your post was out of character.
Can you drill speed holes in those rails to make the bike lighter?
it might even whistle in the wind!!
it might even whistle in the wind!!
Hrm... how does it cope with sand?
Sure, mills slide on rails, that scrape the chips out of the way. But metal chips don't crush and become smaller and abrasive and more likely to get in gaps like sand does.
Sure, mills slide on rails, that scrape the chips out of the way. But metal chips don't crush and become smaller and abrasive and more likely to get in gaps like sand does.
Yes, I can see the rail chipping or something getting on the way of the rail. This would mean (if it was compressing) it would stop suddenly and dissipate a hell of a lot of energy through the frame. Not to mention some extreme ball crushing action.
Me thinks it could become high maintenance (especially dirty, sandy, muddy places).
Just that little piece of abrasive material could bring your frames life (and your sex life) to an abrupt end...
On this kind of complicated design it is very hard to cover all bases and possible situations.
Just speculation though.
Me thinks it could become high maintenance (especially dirty, sandy, muddy places).
Just that little piece of abrasive material could bring your frames life (and your sex life) to an abrupt end...
On this kind of complicated design it is very hard to cover all bases and possible situations.
Just speculation though.
All of this discussion of the problems with exposed sliding surfaces is interesting and could be a problem. Your fork faces a similar situation and avoids damage with a simple wiper. I wonder if they have something similar in mind?
Well, from what I know about the rail design (not on the bike, but that kind of rail design in general), there are wipers on them.Threepointtwo said:
However, the linkages will be much more prone getting mud and schit thrown up onto them from the tires. Think about what your rear linkage looks like after a muddy DH run compared to your fork.
Then think about what the shaft of your rear shock looks like. The shock is completely covered with mud, but the shaft is nice and shiny.binary visions said:
Yep, because there's some pretty good seals there. But the mud is going to be far less prone to collecting on the shaft surface because A) it's small, B) it's round, C) it's somewhat protected by the coil and D) the entirety of the shaft is never exposed once you sit on the bike - the shaft is constantly, at least partly in the shock body.Echo said:
None of this applies to the rails.
I wonder if kids will be running alongside 303 riders attempting to put pennies on the rails? That could hurt a DH run.
Maybe they enclose the whole get-up?
Maybe they enclose the whole get-up?
After interbike I expect to see an entire website with hundreds of pictures dedicated to these rails. If you can get away with it, try throwing sand in them and cycling the suspension to see if you can **** it up.
Yeah right, if your wheels never leave the ground. Funny, but mine tend to do that when I'm ridingbinary visions said:
Touche!Dogboy said:Yeah right, if your wheels never leave the ground. Funny, but mine tend to do that when I'm riding