MTB Tech Rumors and Innovation

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kcy4130
Posts
319
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7/14/2021
Location
MT US
3/9/2023 10:52am

There's got to be a linear rail behind that seat tube, right? tehe. It would make sense to use a six bar like their ebike, I can't see any definite evidence of it tho. 

1
3/9/2023 11:03am
Aksel_Lfft wrote:
Also, is it just me or is the upper part more like a pulley than a proper sprocket ? hmmm can't wait to see more angles...

Also, is it just me or is the upper part more like a pulley than a proper sprocket ? hmmm can't wait to see more angles of this suspension layout !

I'd imagine the chain rub on the sides would be unbearable if there was no cog, but it does look pretty smooth to me. Maybe it could allow them to fine tune the chainline? If it were me I'd use that link on the idler to fine tune the position, or maybe have it under some sort of tension.

csermonet
Posts
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GA US
3/9/2023 11:03am

Yeti always gets wild with their dh bike suspension, so i would expect something sorta novel on this one outside of  just being a high pivot/idler. we'll see soon enough

3/9/2023 11:04am
ArchiRaph wrote:
 

F77068E7-FCDD-4161-B285-0F285725A04E

 

gonza.s.m. wrote:
 yeti back to the business, hell yeah!

yeti.jpg?VersionId=X0vsbHfyWpSXJYAU7H5RWO0AFe

 yeti back to the business, hell yeah!

iwil815 wrote:
Quote at the bottom of the Richie video: “IT’S BEEN HUMBLING SEEING YETI WORK HARD TO BRING A DH RACE BIKE TO LIFE WITHOUT COMPROMISE. AFTER...

Quote at the bottom of the Richie video: “IT’S BEEN HUMBLING SEEING YETI WORK HARD TO BRING A DH RACE BIKE TO LIFE WITHOUT COMPROMISE. AFTER LEAVING THE SPORT ALMOST TEN YEARS AGO IT’S EXCITING TO GET THE OPPORTUNITY TO BE INVOLVED WITH ANOTHER YETI SPECIAL PROJECT.  RACING ENDURO OVER THE PAST DECADE HAS BEEN REALLY FULFILLING, BUT I AM EAGER TO EXPLORE DH AGAIN. I WANT TO PUSH MYSELF AT HIGHER SPEEDS AND GET IN TUNE WITH THAT DH MENTALITY AGAIN AND IDEALLY BRING THOSE BENEFITS OVER TO ENDURO. WHEN IT COMES DOWN TO IT, I JUST WANT TO GET ON A DH BIKE AGAIN AND HAVE SOME FUN.”

Looks like he will step into a few races on the new rig.

also judging by the shouting he's been on a spiked bottle again

4
9
Losifer
Posts
407
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9/12/2017
Location
Sandia Park, NM US
3/9/2023 11:05am
PisgahGnar wrote:
What is this business behind the chainring? I know some high pivots also use a second pulley attached to the bashguard, like the e13 guard on...

What is this business behind the chainring? I know some high pivots also use a second pulley attached to the bashguard, like the e13 guard on Forbidden's, but this is huge. 

image-20230309130257-1

I don't know anything about this.

Sure... Perhaps someone could guide you to some insight?

4
sspomer
Posts
6030
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6/26/2009
Location
Boise, ID US
3/9/2023 11:08am
csermonet wrote:
Yeti always gets wild with their dh bike suspension, so i would expect something sorta novel on this one outside of  just being a high pivot/idler...

Yeti always gets wild with their dh bike suspension, so i would expect something sorta novel on this one outside of  just being a high pivot/idler. we'll see soon enough

7
Primoz
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SI
3/9/2023 11:09am
Primoz wrote:
Less losses :P The pivot looks a bit higher than what GT and Trek use (which is a low-high-pivot (lol...)) but I'd say still lower than...

Less losses Tongue

The pivot looks a bit higher than what GT and Trek use (which is a low-high-pivot (lol...)) but I'd say still lower than what Norco and V4 Supreme use, let alone what Zerode did back in the day.

Do I spy two shock mounting positions near the BB?

Also, regarding horst link... There's a massive aluminium piece concentric to the rear axle. I vote split pivot. As for 6-bar and all, it's surprising to me how small the rocker link is considering it's a long travel bike...

Kapolczer wrote:
Agreed on the pivot being mid-high and split pivot design rather than Horst link. Rear end looks quite similar to the Hope HB916 but with a...

Agreed on the pivot being mid-high and split pivot design rather than Horst link. Rear end looks quite similar to the Hope HB916 but with a higher pivot and smaller rocker link as mentioned. I think this design lends itself to being quite flexible for fine tuning kinematics while still being nicely packaged.

Should we start placing bets on what the kinematic numbers will be???😂

Short links tend to be harder to optimize kinematics-wise than longer ones (thus Neko opting for the mother of all rockers) as the angle changes through the travel are more severe and can be more unfavourable in certain travel parts.

3
Primoz
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3/9/2023 11:10am
rludes025 wrote:
I just stumbled on to this link within the 'roots run deep' page https://yeticycles.com/technology/special-projects  

I just stumbled on to this link within the 'roots run deep' page

https://yeticycles.com/technology/special-projects

Screenshot 2023-03-09 120335

 

This can't be it, it's a Horst link!!

They hid the pivot very well and threw me off the trail with the chainstay being completely inline with the rear axle.

2
kcy4130
Posts
319
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Location
MT US
3/9/2023 11:13am

Great find rludes! In the text: "First launched on our 160e to handle the specific requirements of an e-MTB, the nerds at Yeti re-applied Sixfinity in a whole new way with one singular goal in mind: to build the fastest Downhill Mountain Bike ever."

3
3/9/2023 11:15am
PisgahGnar wrote:
What is this business behind the chainring? I know some high pivots also use a second pulley attached to the bashguard, like the e13 guard on...

What is this business behind the chainring? I know some high pivots also use a second pulley attached to the bashguard, like the e13 guard on Forbidden's, but this is huge. 

image-20230309130257-1

I don't know anything about this.

return of the MRP roller chainguides? missed out on the opportunity to come out with orange rollers again haha

3
AndehM
Posts
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Location
El Granada, CA US
3/9/2023 11:16am
kcy4130 wrote:
Great find rludes! In the text: "First launched on our 160e to handle the specific requirements of an e-MTB, the nerds at Yeti re-applied Sixfinity in...

Great find rludes! In the text: "First launched on our 160e to handle the specific requirements of an e-MTB, the nerds at Yeti re-applied Sixfinity in a whole new way with one singular goal in mind: to build the fastest Downhill Mountain Bike ever."

Yeah, I noticed that too.  And look at the seat tube, it's huge, with a cutout behind the rocker.  I bet it's 6-bar like their ebike, with the extra bar going from the swingarm through the seat tube to the rocker.

4
Primoz
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SI
3/9/2023 11:19am
kcy4130 wrote:
Great find rludes! In the text: "First launched on our 160e to handle the specific requirements of an e-MTB, the nerds at Yeti re-applied Sixfinity in...

Great find rludes! In the text: "First launched on our 160e to handle the specific requirements of an e-MTB, the nerds at Yeti re-applied Sixfinity in a whole new way with one singular goal in mind: to build the fastest Downhill Mountain Bike ever."

Whoa! There have to be some more links in that seat tube!! The chainstay probably isn't mounted directly to the frame, but via another short link and there's a dogbone link to the top link!

1
3/9/2023 11:24am
Primoz wrote:
Whoa! There have to be some more links in that seat tube!! The chainstay probably isn't mounted directly to the frame, but via another short link...

Whoa! There have to be some more links in that seat tube!! The chainstay probably isn't mounted directly to the frame, but via another short link and there's a dogbone link to the top link!

It says Sixfinity on the website but where is it hiding? Looks like the rocker could potentially actually be a split pivot and it also looks like something hiding in the seat tube behind the shock area…9F66B16B-0FAD-4F3A-AA08-EEBE3598FEF9.jpeg?VersionId=zQ

 

3
Primoz
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3/9/2023 11:28am Edited Date/Time 3/9/2023 11:28am

Exactly. You do not put a fender on the seatstay bridge to not cover the 'seat tube' with mud (you do it to prevent mud covering the links in there) and you do not make the seattube THAT chungus only to cut a hole in it without a reason.

Obviously I could be wrong, I did say it's a split-pivot about half an hour ago...

1
krisrayner
Posts
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4/29/2014
Location
San Luis Obispo, CA US
3/9/2023 11:30am

#TBT to Richie smoking Loris at World Champs in South Africa

Screen Shot 2013-08-30 at 1.33.13 PM copy

 

12
MTBrent
Posts
104
Joined
7/7/2015
Location
Concord, NH US
3/9/2023 11:32am
rludes025 wrote:
I just stumbled on to this link within the 'roots run deep' page https://yeticycles.com/technology/special-projects  

I just stumbled on to this link within the 'roots run deep' page

https://yeticycles.com/technology/special-projects

Screenshot 2023-03-09 120335

 

That void behind the upper part of the shock looks like a prime area for a 6th bar to connect the rocker and chainstay/lower link... 

1
gonza.s.m.
Posts
65
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Location
dallas, TX US
3/9/2023 12:16pm
sspomer wrote:
you all are the tech gurus, so enlighten me. this proto looks pretty high pivot. aren't most riders/brands settling in on mid-pivot after a few years...

you all are the tech gurus, so enlighten me. this proto looks pretty high pivot. aren't most riders/brands settling in on mid-pivot after a few years of high-pivot stuff? or am i mistaken?

It’s not THAT high is it? Looks similar to a Norco Shore or GT DH bike. I suspect it’s a Horst link, can kinda see a...

It’s not THAT high is it? Looks similar to a Norco Shore or GT DH bike. I suspect it’s a Horst link, can kinda see a pivot on the chainstay?

What surprises me most is that Yeti would go with this design? They have their 6bar e-bike platform and their switch infinity designs, so why not stay with the brand identity instead of following the mainstream?

Maybe because it is too complicated/unneeded to actually function well on a dh bike? I mean it works relatively well on their trail bikes (which cater...

Maybe because it is too complicated/unneeded to actually function well on a dh bike? I mean it works relatively well on their trail bikes (which cater to a bigger demographic, marketing wise, than a world cup racer) and such but is it needed on a dh bike when way simpler designs have won countless more races?

for me there are two answers:

 

1-some suspension systems are that bad efficient that high pivot make it better(Antisquat)

2- is in fashion to go high

1
airwreck
Posts
105
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4/7/2015
Location
Wailuku, HI US
3/9/2023 12:27pm
Primoz wrote:
The new air shock? 

Screenshot 20230309-151457.png?VersionId=R. 63xFhqIBW

The new air shock? 

I still have one of those boxes, can't even remember what was in it.

Onawalk
Posts
344
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Location
CA
3/9/2023 12:37pm
rludes025 wrote:
I just stumbled on to this link within the 'roots run deep' page https://yeticycles.com/technology/special-projects  

I just stumbled on to this link within the 'roots run deep' page

https://yeticycles.com/technology/special-projects

Screenshot 2023-03-09 120335

 

Primoz wrote:
This can't be it, it's a Horst link!! They hid the pivot very well and threw me off the trail with the chainstay being completely inline...

This can't be it, it's a Horst link!!

They hid the pivot very well and threw me off the trail with the chainstay being completely inline with the rear axle.

Am I wrong thinking a Horst link bike has the chainstay pivot below the rear axle (assuming a line drawn between the centre of both front and rear axles)?

is the centre line of the chainstay pivot slightly above the rear axle?

TEAMROBOT
Posts
1348
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9/2/2009
Location
Los Angeles, CA US
3/9/2023 12:38pm
Primoz wrote:
The new air shock? 

Screenshot 20230309-151457.png?VersionId=R. 63xFhqIBW

The new air shock? 

airwreck wrote:

I still have one of those boxes, can't even remember what was in it.

I'm guessing the Totem goodie box was packed full of spare seals and bushings. I never had a Totem, but all my friends that did said the forks always needed a rebuild and ate seals and bushings like cookie monster eats cookies.

2
Primoz
Posts
4519
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Location
SI
3/9/2023 1:26pm
rludes025 wrote:
I just stumbled on to this link within the 'roots run deep' page https://yeticycles.com/technology/special-projects  

I just stumbled on to this link within the 'roots run deep' page

https://yeticycles.com/technology/special-projects

Screenshot 2023-03-09 120335

 

Primoz wrote:
This can't be it, it's a Horst link!! They hid the pivot very well and threw me off the trail with the chainstay being completely inline...

This can't be it, it's a Horst link!!

They hid the pivot very well and threw me off the trail with the chainstay being completely inline with the rear axle.

Onawalk wrote:
Am I wrong thinking a Horst link bike has the chainstay pivot below the rear axle (assuming a line drawn between the centre of both front...

Am I wrong thinking a Horst link bike has the chainstay pivot below the rear axle (assuming a line drawn between the centre of both front and rear axles)?

is the centre line of the chainstay pivot slightly above the rear axle?

That's a minor detail, I think Rocky got around the FSR patent by putting the pivot above the rear-centre line, so technically yes, but I'd say if the pivot is on the chainstay near the rear axle (and the brake link is floating obviously), then we categorise it as a horst link. It's gonna function more or less the same regardless of where the pivot actually is. QED, remember the older Demo where the main pivot was concentric so they could drop all the pivots, including the chainstay one? You can do something similar by raising all of them if you wanted for example.

And it very much looks like it's a 6-bar anyway, so the whole horst-link discussion is moot Smile

Re Totem, meh, I got swindled!

1
3/9/2023 2:02pm

Kinda funny that Richie Rude won South Africa on the same Saint groupset that's on this prototype 10 years later. Grinning

25
Simpancz
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5/19/2022
Location
CA
3/9/2023 2:25pm
Kinda funny that Richie Rude won South Africa on the same Saint groupset that's on this prototype 10 years later. 

Kinda funny that Richie Rude won South Africa on the same Saint groupset that's on this prototype 10 years later. Grinning

Old does not mean obsolete 😆

16
3/9/2023 3:36pm
PisgahGnar wrote:
What is this business behind the chainring? I know some high pivots also use a second pulley attached to the bashguard, like the e13 guard on...

What is this business behind the chainring? I know some high pivots also use a second pulley attached to the bashguard, like the e13 guard on Forbidden's, but this is huge. 

image-20230309130257-1

that pulley location reduces the negative effect of the derailleur clutch by keeping the chain in more of a parallelogram shape so there isn't as much growth

4
3/9/2023 5:22pm
Primoz wrote:
https://i.imgur.com/PNzath0.png From @Marshall Willanholly in the team rumors thread. I see daylight! :P

https://i.imgur.com/PNzath0.png

From @Marshall Willanholly in the team rumors thread. I see daylight! Tongue

You can see the edge of the dogbone link inside the seat tube too, unless that's an oddly asymmetrical seat tube.

1
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