MTB Tech Rumors and Innovation

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Dave_Camp
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468
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USA
10/31/2023 9:49am
Primoz wrote:

Glued together lowers. Not uncommon. Rock shox did that in the development phase of the Totem I think. 

Yes that proto was sitting on display at the old building.  Aluminum 3 piece lowers glued together.  Could be a way to manufacture lower quantities?  


Lots cheaper and faster than prototyping with a casting tool.

4
One Ghost
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163
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Location
Tacoma, WA, USA
10/31/2023 9:55am
One Ghost wrote:
This reminds me of this Japanese fork I had a long time back. I am trying to remember the name of it. It was total air...

This reminds me of this Japanese fork I had a long time back. I am trying to remember the name of it. It was total air and adjustable from 160mm to 100mm externally. It was all milled out just like this one and it rode really smooth. If I can remember the name or find a photo I'll post it up

Javigutz wrote:

Kowa?

YES! that's it!!

2
Primoz
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10/31/2023 10:06am

FWIW, that ND Tuned fork not only looks glued together, but the arch with seal seats look 3D printed.

4
Primoz
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10/31/2023 10:07am Edited Date/Time 10/31/2023 10:08am
Primoz wrote:

Glued together lowers. Not uncommon. Rock shox did that in the development phase of the Totem I think. 

Dave_Camp wrote:
Yes that proto was sitting on display at the old building.  Aluminum 3 piece lowers glued together.  Could be a way to manufacture lower quantities?  ...

Yes that proto was sitting on display at the old building.  Aluminum 3 piece lowers glued together.  Could be a way to manufacture lower quantities?  


Lots cheaper and faster than prototyping with a casting tool.

Intend screw the arch onto the lowers from the inside on the Blackline Ebonite fork from what I managed to gather. The dropouts are also an add-on to the outers tubes, so the outers themselves are probably turned from a bar/tube stock.

1
dolface
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USA
10/31/2023 3:04pm

Has anyone heard anything about Conti releasing a soft or super-soft tire w/ their trail casing? @iceman2058 mentioned it in the comments here (from Eurobike) it's been crickets since then.

8
10/31/2023 3:15pm
dolface wrote:
Has anyone heard anything about Conti releasing a soft or super-soft tire w/ their trail casing? @iceman2058 mentioned it in the comments here (from Eurobike) it's...

Has anyone heard anything about Conti releasing a soft or super-soft tire w/ their trail casing? @iceman2058 mentioned it in the comments here (from Eurobike) it's been crickets since then.

I’m meant to be receiving some for testing but not sure when exactly…hopefully soon!

11
Primoz
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SI
10/31/2023 3:50pm

Finally DH grade rubber coming to lighter duty casings?

12
10/31/2023 3:57pm
sspomer wrote:
cane creek air-charged coil tigon shock - https://www.vitalmtb.com/news/press-release/cane-creek-introduces-air-charged-coil-shock-tigon  

Reading the article, I was so tempted to consider it for my Ripmo AF once the DVO Topaz inevitably goes kaput (perfect conditions really - I'm a light rider and the bike has a clevis mount and less progressive suspension) and would even take the weight penalty on what's already a 36lb bike, but man that $900 price without a spring or hardware would be tough to swallow on my 'budget' build. I think this is a great solution for people with deep wallets, as long as the damping holds up to the likes of EXT, Fast, Öhlins, and the rest of that $1000+ space.

1
dolface
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10/31/2023 4:03pm
Reading the article, I was so tempted to consider it for my Ripmo AF once the DVO Topaz inevitably goes kaput (perfect conditions really - I'm...

Reading the article, I was so tempted to consider it for my Ripmo AF once the DVO Topaz inevitably goes kaput (perfect conditions really - I'm a light rider and the bike has a clevis mount and less progressive suspension) and would even take the weight penalty on what's already a 36lb bike, but man that $900 price without a spring or hardware would be tough to swallow on my 'budget' build. I think this is a great solution for people with deep wallets, as long as the damping holds up to the likes of EXT, Fast, Öhlins, and the rest of that $1000+ space.

If you can wait until they start hitting the used market I bet you can find a price that'll work Cool

3
2
smelly
Posts
227
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Location
Colorado Springs, CO, USA
11/1/2023 5:51am
iceman2058 wrote:

I’m meant to be receiving some for testing but not sure when exactly…hopefully soon!

That’d be great. I have a set of trail Kryptotals on my hardtail. Good tread pattern, the compound is pretty hard though

1
11/1/2023 7:09am
dolface wrote:
Has anyone heard anything about Conti releasing a soft or super-soft tire w/ their trail casing? @iceman2058 mentioned it in the comments here (from Eurobike) it's...

Has anyone heard anything about Conti releasing a soft or super-soft tire w/ their trail casing? @iceman2058 mentioned it in the comments here (from Eurobike) it's been crickets since then.

UK Distributor was quoting new year for Enduro casing in supersoft

3
11/1/2023 9:48pm
jsray wrote:

Ya that’s definitely a hard tail 

Yes, a Vanquish updated with the modern ID that all the other Transitions have. 

 

yetipowder
Posts
7
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10/7/2019
Location
Philadelphia, PA, USA
11/1/2023 10:10pm
jsray wrote:

Ya that’s definitely a hard tail 

Yes, a Vanquish updated with the modern ID that all the other Transitions have. 

 

Any sense of the HTA? 

yetipowder
Posts
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Location
Philadelphia, PA, USA
11/2/2023 6:06am
New bike from Transition it's a steel hardtail.  https://www.vitalmtb.com/news/press-release/transition-bikes-relaunches-transam (edited to vital link b/c that yahoo sports link did weird things -spomer)

New bike from Transition it's a steel hardtail. 

SAVE 20231102 134353.jpg?VersionId=woRd5pFHZIc4VE3Fcjf

https://www.vitalmtb.com/news/press-release/transition-bikes-relaunches… (edited to vital link b/c that yahoo sports link did weird things -spomer)

Well this looks sweet.  Perhaps my Sherpa replacement has finally arrived. Wish HTA was one degree steeper, yes steeper, but I know I’m a Luddite in the minority. But with ability to spec at 140 might be just right 

1
stoic_machine
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Location
Dildo, Newfoundland, CA
11/2/2023 8:44am
New bike from Transition it's a steel hardtail.  https://www.vitalmtb.com/news/press-release/transition-bikes-relaunches-transam (edited to vital link b/c that yahoo sports link did weird things -spomer)

New bike from Transition it's a steel hardtail. 

SAVE 20231102 134353.jpg?VersionId=woRd5pFHZIc4VE3Fcjf

https://www.vitalmtb.com/news/press-release/transition-bikes-relaunches… (edited to vital link b/c that yahoo sports link did weird things -spomer)

The Trans Am is back Baby!
 

2
stoic_machine
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Location
Dildo, Newfoundland, CA
11/2/2023 8:45am

Word on the street is we are going to see an E-Slash next year running the motor similar to the fuel. 

6
11/2/2023 10:28am

With this new, overly complex, heavy, and expensive Cane Creek shock, I'm curious why we don't see two stage springs in mountain biking, like this: 

image-20231102122450-1

image-20231102122520-2

From my experience, progressive coils shouldn't be about bottom out resistance, but a lighter top-out. With either a reverse-progressively wound coil, or just using two coils, I feel shock performance would be best with a softer spring rate until a little past sag, then a heavier coil weight for the rest of the travel. An oversized elastomer bottom-out bumper (thats designed appropriately so it doesn't reduce travel) seems to be the cheapest, easiest, and lightest way to get better bottom out resistance. The Cane Creek has to run such massive high speed rebound that they had to dump the external adjustment for it.

5
1
Primoz
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Location
SI
11/2/2023 10:39am

These look kinda like helper springs (the weird part is that they are round though). Helper springs are not there to be progressive, they are there to prevent the spring from flying around on full extension when you put massively stiff springs on a car that otherwise uses softer springs.

https://www.youtube.com/shorts/XkkALfh-59Q

5
Jakub_G
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383
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Location
SK
11/2/2023 12:39pm Edited Date/Time 11/2/2023 10:32pm
With this new, overly complex, heavy, and expensive Cane Creek shock, I'm curious why we don't see two stage springs in mountain biking, like this:  From...

With this new, overly complex, heavy, and expensive Cane Creek shock, I'm curious why we don't see two stage springs in mountain biking, like this: 

image-20231102122450-1

image-20231102122520-2

From my experience, progressive coils shouldn't be about bottom out resistance, but a lighter top-out. With either a reverse-progressively wound coil, or just using two coils, I feel shock performance would be best with a softer spring rate until a little past sag, then a heavier coil weight for the rest of the travel. An oversized elastomer bottom-out bumper (thats designed appropriately so it doesn't reduce travel) seems to be the cheapest, easiest, and lightest way to get better bottom out resistance. The Cane Creek has to run such massive high speed rebound that they had to dump the external adjustment for it.

Dude, the best way to do rear shock is linear spring and sorted kinematics, everything else is band aid to poorly designed frames and/or marketing BS to sell new stuff. Good kinematics do all you mentioned without adding weight and complexity and allow the spring rate change to work in harmony with damping. Not to mention related cost issues for absolutely zero added benefit...Cars need very different suspension setup, as primoz mentioned, when you run stiff enough springs to support heavy cars in the high G corners and add high ground effect on real race cars to it, you can either use very little (or even zero) droop setup (droop has pretty much the same meaning as sag on MTB, with same drawback of not enough negative travel) or get helper springs to keep enough preload on the main spring to prevent them from rattling around when the car is unweighted. Give it a rest already ffs.

1
9
11/2/2023 1:38pm
With this new, overly complex, heavy, and expensive Cane Creek shock, I'm curious why we don't see two stage springs in mountain biking, like this:  From...

With this new, overly complex, heavy, and expensive Cane Creek shock, I'm curious why we don't see two stage springs in mountain biking, like this: 

image-20231102122450-1

image-20231102122520-2

From my experience, progressive coils shouldn't be about bottom out resistance, but a lighter top-out. With either a reverse-progressively wound coil, or just using two coils, I feel shock performance would be best with a softer spring rate until a little past sag, then a heavier coil weight for the rest of the travel. An oversized elastomer bottom-out bumper (thats designed appropriately so it doesn't reduce travel) seems to be the cheapest, easiest, and lightest way to get better bottom out resistance. The Cane Creek has to run such massive high speed rebound that they had to dump the external adjustment for it.

Jakub_G wrote:
Dude, the best way to do rear shock is linear spring and sorted kinematics, everything else is band aid to poorly designed frames and/or marketing BS...

Dude, the best way to do rear shock is linear spring and sorted kinematics, everything else is band aid to poorly designed frames and/or marketing BS to sell new stuff. Good kinematics do all you mentioned without adding weight and complexity and allow the spring rate change to work in harmony with damping. Not to mention related cost issues for absolutely zero added benefit...Cars need very different suspension setup, as primoz mentioned, when you run stiff enough springs to support heavy cars in the high G corners and add high ground effect on real race cars to it, you can either use very little (or even zero) droop setup (droop has pretty much the same meaning as sag on MTB, with same drawback of not enough negative travel) or get helper springs to keep enough preload on the main spring to prevent them from rattling around when the car is unweighted. Give it a rest already ffs.

Whether out of naivety or preference, I personally disagree. I think more linear kinematics with a good long stroke shock that can be set up any which way you want is the ideal scenario for me.

The problem is that the ideal setup for each person is subjective (despite what engineering and science says) and if the control is baked into the kinematics, you are stuck with that whether you like it or not.

I do also agree that many shocks on the market also aren’t up to the task of fully controlling things, but that’s another story.

The frame designer needs to worry about flex and geo and space for water bottles etc. if they can just make a more linear design (not completely linear) that doesn’t rely on the shock as a structural member, then they can let the suspension engineers actually do their job instead of having to work around the multiples of kak frame designs that are mostly different just for the sake of marketing and patents.

but that’s just my opinion 🤷🏻‍♂️

5
brash
Posts
960
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Location
AU
11/2/2023 1:47pm
New bike from Transition it's a steel hardtail.  https://www.vitalmtb.com/news/press-release/transition-bikes-relaunches-transam (edited to vital link b/c that yahoo sports link did weird things -spomer)

New bike from Transition it's a steel hardtail. 

SAVE 20231102 134353.jpg?VersionId=woRd5pFHZIc4VE3Fcjf

https://www.vitalmtb.com/news/press-release/transition-bikes-relaunches… (edited to vital link b/c that yahoo sports link did weird things -spomer)

Looks good, very similar Geo to the Norco torrent which is such a fun bike to ride. Love mine, I am blown away with the wild stuff you can ride on these modern HT's

1
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