MTB Tech Rumors and Innovation

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Primoz
Posts
4680
Joined
8/1/2009
Location
SI
4/10/2023 11:06am

I think Fox actually patented the VVC adjusters, so there's a reason nobody else uses it.

2
BigNubbs
Posts
8
Joined
2/7/2015
Location
Mount Shasta, CA, USA
4/10/2023 12:36pm

They've been working on the re-release of the Float X2 for 2024.

It's going to be much better they're hoping. Sea otter.

Some new things going on in the base valve, new bearing design, some new tunes, new trunnion eyelet that is thicker at the body threads. Like the old 2020 float x2 design. 7000 series bodies to prevent cracking on Trunnion. Hardend steel damper shafts I think for both x2 dampers.

Haven't heard of new fork/vvc stuff for 2024.

7
earleb
Posts
368
Joined
3/23/2023
Location
North Vancouver, BC, CA
Fantasy
4/10/2023 1:47pm
TEAMROBOT wrote:
The Fox GRIP2 damper looks 5 years old, but it got a pretty important update that flew under the radar when they did the VVC adjuster...

The Fox GRIP2 damper looks 5 years old, but it got a pretty important update that flew under the radar when they did the VVC adjuster inside the damper 3 years ago. Unfortunately, the knobs on the outside look the same so you can't tell it's different, but it's a pretty clever invention that allows them to fine tune their high speed rebound and compression shims in place on the damper rod without preloading them. The original GRIP2 damper (and lots of other fork dampers in lots of other brands) use the high speed knobs (on compression or rebound) to adjust preload on shims. This achieves the goal of increasing damping force through those shims but it doesn't do so evenly across the speed range, creating a digressive damper tune for heavier riders. Digressive means lots of damping force until you overcome the preload, then it blows wide open. Not ideal, but a pretty common way to deliver adjustable high speed damping for customers that doesn't require taking apart the damper and installing rider-specific shim stacks.

The VVC damper doesn't preload the shims, it actually changes their spring rate via a knob, which allows heavier riders to run more high speed damping AND have it more consistent across various shaft speeds. Think of preloading a coil spring versus changing coil springs- one is much more effective at tuning spring rate than the other. I haven't ridden one, but I love the thinking, and I don't know of another damper that can do what the VVC adjusters do. If you're curious, there's a pretty good video from Fox explaining how they work: https://www.youtube.com/watch?v=krLP9cawQAA

Ohlins does this with their variable clamp design in the TTX18. In the TTX18 they don't preload the HS stack with a spring they change the OD of the clamp shim. I have not seen a good picture showing how they do it.

Changing the OD of the clamp shim makes the slope steeper. They way others do it with the spring pre-load keeps the slope the same but moves the whole curve up. 

2
chriskief
Posts
793
Joined
4/15/2017
Location
New York, NY, USA
Fantasy
4/10/2023 2:04pm
BigNubbs wrote:
They've been working on the re-release of the Float X2 for 2024. It's going to be much better they're hoping. Sea otter. Some new things going...

They've been working on the re-release of the Float X2 for 2024.

It's going to be much better they're hoping. Sea otter.

Some new things going on in the base valve, new bearing design, some new tunes, new trunnion eyelet that is thicker at the body threads. Like the old 2020 float x2 design. 7000 series bodies to prevent cracking on Trunnion. Hardend steel damper shafts I think for both x2 dampers.

Haven't heard of new fork/vvc stuff for 2024.

A friend received one recently as a warranty. Supposedly addresses the trunnion issues. The label has a few new codes on it which are different from the 22/23 model.

fox.jpg?VersionId=qEQXqHYt4JYvUkKlouDumer1bpe

 

4
BigNubbs
Posts
8
Joined
2/7/2015
Location
Mount Shasta, CA, USA
4/10/2023 2:49pm
BigNubbs wrote:
They've been working on the re-release of the Float X2 for 2024. It's going to be much better they're hoping. Sea otter. Some new things going...

They've been working on the re-release of the Float X2 for 2024.

It's going to be much better they're hoping. Sea otter.

Some new things going on in the base valve, new bearing design, some new tunes, new trunnion eyelet that is thicker at the body threads. Like the old 2020 float x2 design. 7000 series bodies to prevent cracking on Trunnion. Hardend steel damper shafts I think for both x2 dampers.

Haven't heard of new fork/vvc stuff for 2024.

chriskief wrote:
A friend received one recently as a warranty. Supposedly addresses the trunnion issues. The label has a few new codes on it which are different from...

A friend received one recently as a warranty. Supposedly addresses the trunnion issues. The label has a few new codes on it which are different from the 22/23 model.

fox.jpg?VersionId=qEQXqHYt4JYvUkKlouDumer1bpe

 

Nice! Yeah that's the new new 2024. Should last much longer between services.

Haven't had any time on mine yet. Winter.

1
2supple
Posts
155
Joined
1/23/2022
Location
Denver, CO, USA
4/10/2023 4:58pm
BigNubbs wrote:
They've been working on the re-release of the Float X2 for 2024. It's going to be much better they're hoping. Sea otter. Some new things going...

They've been working on the re-release of the Float X2 for 2024.

It's going to be much better they're hoping. Sea otter.

Some new things going on in the base valve, new bearing design, some new tunes, new trunnion eyelet that is thicker at the body threads. Like the old 2020 float x2 design. 7000 series bodies to prevent cracking on Trunnion. Hardend steel damper shafts I think for both x2 dampers.

Haven't heard of new fork/vvc stuff for 2024.

chriskief wrote:
A friend received one recently as a warranty. Supposedly addresses the trunnion issues. The label has a few new codes on it which are different from...

A friend received one recently as a warranty. Supposedly addresses the trunnion issues. The label has a few new codes on it which are different from the 22/23 model.

fox.jpg?VersionId=qEQXqHYt4JYvUkKlouDumer1bpe

 

BigNubbs wrote:

Nice! Yeah that's the new new 2024. Should last much longer between services.

Haven't had any time on mine yet. Winter.

I got a call from their warranty dept today saying that they wanted to swap to the new 2024 as well. Only downside is it sounds like it's a different tune and I really liked the existing tune that came stock on my bike. They said they will pick a tune that closely matches as possible (given the new valving) - I hope it's not much different. 

1
samlr
Posts
35
Joined
12/14/2017
Location
CA
4/11/2023 8:05am
chriskief wrote:
A friend received one recently as a warranty. Supposedly addresses the trunnion issues. The label has a few new codes on it which are different from...

A friend received one recently as a warranty. Supposedly addresses the trunnion issues. The label has a few new codes on it which are different from the 22/23 model.

fox.jpg?VersionId=qEQXqHYt4JYvUkKlouDumer1bpe

 

BigNubbs wrote:

Nice! Yeah that's the new new 2024. Should last much longer between services.

Haven't had any time on mine yet. Winter.

2supple wrote:
I got a call from their warranty dept today saying that they wanted to swap to the new 2024 as well. Only downside is it sounds...

I got a call from their warranty dept today saying that they wanted to swap to the new 2024 as well. Only downside is it sounds like it's a different tune and I really liked the existing tune that came stock on my bike. They said they will pick a tune that closely matches as possible (given the new valving) - I hope it's not much different. 

It is not much different. I've been testing a few new tune this winter and to be honest my bike feel better. 

2
26aintdead
Posts
24
Joined
10/19/2022
Location
Rossland, BC, CA
4/11/2023 9:50am

anybody have any new insights about the release date of the new boxxer / vivid?

4/11/2023 10:28am

I noticed a change to the Trek Session Factory bikes in a video they just posted.

Looks like like the chainstay pivot isn’t a full cnc unit like in the past. Maybe a brace that could be changed for stiffness.

F77EBC80-27BA-41F2-9944-CB53FA733240

 

16
mspenc
Posts
6
Joined
3/2/2023
Location
Fort Collins, CO, USA
4/11/2023 10:53am
readochris wrote:
Has anyone seen any Rockshox athletes running flight attendant on their bikes? I haven’t been able to spot any from my casual peruse of the footage...

Has anyone seen any Rockshox athletes running flight attendant on their bikes? I haven’t been able to spot any from my casual peruse of the footage from the first 2 EDRs. 

I remember Charlie Murray (NZ) was running flight attendant last year after it got released but don’t know for how long that lasted

readochris wrote:
Yeh that’s right. I’ve been seeing over the summer (our southern summer) that he hasn’t had it on and obviously not on any other athletes it...

Yeh that’s right. I’ve been seeing over the summer (our southern summer) that he hasn’t had it on and obviously not on any other athletes it seems this season. Just curious as it seemed targeted as a racing product but the top racers don’t seem to be running it. 

I could be wrong since things change so fast, but Flight Attendant is still based on the bladder charger 2.1 damper, and hasn't been upgraded to the charger 3 yet. This likely explains why none of the pros are using it anymore.

11
fartsack
Posts
156
Joined
10/13/2021
Location
咸興市, KP
4/12/2023 1:45am Edited Date/Time 4/12/2023 1:50am
TEAMROBOT wrote:
The Fox GRIP2 damper looks 5 years old, but it got a pretty important update that flew under the radar when they did the VVC adjuster...

The Fox GRIP2 damper looks 5 years old, but it got a pretty important update that flew under the radar when they did the VVC adjuster inside the damper 3 years ago. Unfortunately, the knobs on the outside look the same so you can't tell it's different, but it's a pretty clever invention that allows them to fine tune their high speed rebound and compression shims in place on the damper rod without preloading them. The original GRIP2 damper (and lots of other fork dampers in lots of other brands) use the high speed knobs (on compression or rebound) to adjust preload on shims. This achieves the goal of increasing damping force through those shims but it doesn't do so evenly across the speed range, creating a digressive damper tune for heavier riders. Digressive means lots of damping force until you overcome the preload, then it blows wide open. Not ideal, but a pretty common way to deliver adjustable high speed damping for customers that doesn't require taking apart the damper and installing rider-specific shim stacks.

The VVC damper doesn't preload the shims, it actually changes their spring rate via a knob, which allows heavier riders to run more high speed damping AND have it more consistent across various shaft speeds. Think of preloading a coil spring versus changing coil springs- one is much more effective at tuning spring rate than the other. I haven't ridden one, but I love the thinking, and I don't know of another damper that can do what the VVC adjusters do. If you're curious, there's a pretty good video from Fox explaining how they work: https://www.youtube.com/watch?v=krLP9cawQAA

Well the VVC wasn't that much of an upgrade since it made highspeed compresseion almost irelevant anyway. 

I do agree tough, the old Grip2 HC was more compression than I needed. This is what a usefull range of settings is for, isnt it? But the new one felt like some twiddly knobs you find at any walmart fork just to look cool.

 

2
EugenM
Posts
79
Joined
8/18/2016
Location
TF
4/12/2023 1:54am
26aintdead wrote:

anybody have any new insights about the release date of the new boxxer / vivid?

on the subject of release dates, shouldn't the embargo on the new Spez ended by now?, what happened, did they postpone the launch date? 

4/12/2023 2:36am
icantride wrote:
https://www.bikeradar.com/news/devinci-chainsaw-steve-smith/   Not sure if they broke the embargo early, but the new Devinci Chainsaw is up. Not on the Devinci website yet Looks good, like...

https://www.bikeradar.com/news/devinci-chainsaw-steve-smith/

 

Not sure if they broke the embargo early, but the new Devinci Chainsaw is up. Not on the Devinci website yet

Looks good, like an alloy Spartan

 

Weird, Did Devinci forget about 6ft riders, less than 470 reach and close to 500 is too much...

current trend is brands relaxing those reach numbers... devinci didnt get the memo i see.
 

3
4/12/2023 2:45am

The latest photos of the unreleased sram caliper, the black one that looks a bit like the original Code caliper. It seems to look quite different from the previous prototype that was red with paint splat effect over it. The shapes around the pistons are different, the latest black one is flatter and the red one had some unusual looking shapes on it. The piston area had bulges in the middle that the latest black one doesn't have.

I'm guessing the current Code is staying and this will be released as a dh specific brake, but it's interesting that theres been no spy shots of any completely new lever designs to go with this new caliper.

I know the new code lever is different but its only changed to be closer to the bars, apparently the internals have not changed.

Does anyone know if the red one is still being spotted being tested out in the wild by pros? Anyone have any ideas on what the bulges on the red one were all about?

I'm hoping the eventual production version looks more like the red one but it seems the black one has a model name which suggests thats the version they are going with?

2
4/12/2023 2:59am
Weird, Did Devinci forget about 6ft riders, less than 470 reach and close to 500 is too much... current trend is brands relaxing those reach numbers...

Weird, Did Devinci forget about 6ft riders, less than 470 reach and close to 500 is too much...

current trend is brands relaxing those reach numbers... devinci didnt get the memo i see.
 

"The reach numbers should give riders plenty of room on the bike. They start at 449mm on the size S and climb to 469mm, 494mm and 519mm for the M, L and XL bikes.

2
Onawalk
Posts
344
Joined
7/5/2021
Location
CA
4/12/2023 5:14am
icantride wrote:
https://www.bikeradar.com/news/devinci-chainsaw-steve-smith/   Not sure if they broke the embargo early, but the new Devinci Chainsaw is up. Not on the Devinci website yet Looks good, like...

https://www.bikeradar.com/news/devinci-chainsaw-steve-smith/

 

Not sure if they broke the embargo early, but the new Devinci Chainsaw is up. Not on the Devinci website yet

Looks good, like an alloy Spartan

 

Screen shot my man,

page is gone 

6
Yoda
Posts
152
Joined
9/24/2021
Location
IT
Fantasy
4/12/2023 5:21am Edited Date/Time 4/12/2023 5:21am
icantride wrote:
https://www.bikeradar.com/news/devinci-chainsaw-steve-smith/   Not sure if they broke the embargo early, but the new Devinci Chainsaw is up. Not on the Devinci website yet Looks good, like...

https://www.bikeradar.com/news/devinci-chainsaw-steve-smith/

 

Not sure if they broke the embargo early, but the new Devinci Chainsaw is up. Not on the Devinci website yet

Looks good, like an alloy Spartan

 

Onawalk wrote:

Screen shot my man,

page is gone 

Looked sick. They'll help fund to the work of the foundation. Its basically an alloy, park oriented Spartan (similar spirit to the Commencal Furious). Can't remember pricing.

Anyone have leads on products releasing at Sea Otter next week? Hope to see a few surprises. 

1
4/12/2023 5:44am Edited Date/Time 4/12/2023 5:45am

image-20230412134458-1image-20230412134501-2image-20230412134509-3

 

Had the tab left open Smile

8
4/12/2023 5:53am
Sol.Cob wrote:
    Had the tab left open :)

image-20230412134458-1image-20230412134501-2image-20230412134509-3

 

Had the tab left open Smile

You’re a beautiful person and you should know this! 😃

Strangely, this Devinci looks exactly like my next bike! 😂 Can anyone extrapolate on how Devinci managed to get another 10mm of travel? By a longer shock, by a different link, a combination?

5
4/12/2023 6:01am

The other site has the Chainsaw story posted. 

4/12/2023 6:15am Edited Date/Time 4/12/2023 6:16am

The Chainsaw’s live on the other site! 
And the details are sick! 

samlr
Posts
35
Joined
12/14/2017
Location
CA
4/12/2023 7:08am
Sol.Cob wrote:
    Had the tab left open :)

image-20230412134458-1image-20230412134501-2image-20230412134509-3

 

Had the tab left open Smile

You’re a beautiful person and you should know this! 😃 Strangely, this Devinci looks exactly like my next bike! 😂 Can anyone extrapolate on how Devinci...

You’re a beautiful person and you should know this! 😃

Strangely, this Devinci looks exactly like my next bike! 😂 Can anyone extrapolate on how Devinci managed to get another 10mm of travel? By a longer shock, by a different link, a combination?

Longer stroke

4/12/2023 8:26am
The latest photos of the unreleased sram caliper, the black one that looks a bit like the original Code caliper. It seems to look quite different...

The latest photos of the unreleased sram caliper, the black one that looks a bit like the original Code caliper. It seems to look quite different from the previous prototype that was red with paint splat effect over it. The shapes around the pistons are different, the latest black one is flatter and the red one had some unusual looking shapes on it. The piston area had bulges in the middle that the latest black one doesn't have.

I'm guessing the current Code is staying and this will be released as a dh specific brake, but it's interesting that theres been no spy shots of any completely new lever designs to go with this new caliper.

I know the new code lever is different but its only changed to be closer to the bars, apparently the internals have not changed.

Does anyone know if the red one is still being spotted being tested out in the wild by pros? Anyone have any ideas on what the bulges on the red one were all about?

I'm hoping the eventual production version looks more like the red one but it seems the black one has a model name which suggests thats the version they are going with?

I've seem them out in the wild but not red....  

1
4/12/2023 9:26am Edited Date/Time 4/12/2023 9:29am
The latest photos of the unreleased sram caliper, the black one that looks a bit like the original Code caliper. It seems to look quite different...

The latest photos of the unreleased sram caliper, the black one that looks a bit like the original Code caliper. It seems to look quite different from the previous prototype that was red with paint splat effect over it. The shapes around the pistons are different, the latest black one is flatter and the red one had some unusual looking shapes on it. The piston area had bulges in the middle that the latest black one doesn't have.

I'm guessing the current Code is staying and this will be released as a dh specific brake, but it's interesting that theres been no spy shots of any completely new lever designs to go with this new caliper.

I know the new code lever is different but its only changed to be closer to the bars, apparently the internals have not changed.

Does anyone know if the red one is still being spotted being tested out in the wild by pros? Anyone have any ideas on what the bulges on the red one were all about?

I'm hoping the eventual production version looks more like the red one but it seems the black one has a model name which suggests thats the version they are going with?

I've seem them out in the wild but not red....  

Hey Jerry, 

Seems like its the black version thats going forward then... you wouldn't happen to have noticed if any of them were running a new brake lever? Whistling

Ever since the Trickstuff and Cascade boutique stuff came on the scene, I've thought it was only a matter of time until sram made a brake that could at least equal the supposed power of trickstuff but at a more realistic price point.

I run the Cascade North Fork calipers and they do feel more powerful, but I wouldn't say its an enormous night and day difference. I've never tried the Trickstuff Maximas but do wonder how much better they can really be.

The fact that Cascade basically just made a caliper using larger pistons to be used with the code lever, I've always been expecting Sram to simply do the same with something mass produced and probably kill off Cascades caliper. Nothing stopping them from doing it...

The new black caliper does somehow look a lot bigger than the current code caliper. I'm wondering how big those pistons will be.

1
earleb
Posts
368
Joined
3/23/2023
Location
North Vancouver, BC, CA
Fantasy
4/12/2023 11:37am

geometron.png?VersionId=BlPPWHxrVrF8jaxASSz.v

 Geometron playing with some new stuff. A gearbox with what looks like a high forward output. Rocker location change and a higher chainstay mount option. 

5
senorbanana
Posts
55
Joined
2/27/2019
Location
San Jose, CA, USA
4/12/2023 11:44am

5Dev slapping sram direct mount transmission to non UDH Sb150 somehow?

 

image-20230412114421-1

10
4/12/2023 12:21pm
Hey Jerry,  Seems like its the black version thats going forward then... you wouldn't happen to have noticed if any of them were running a new...

Hey Jerry, 

Seems like its the black version thats going forward then... you wouldn't happen to have noticed if any of them were running a new brake lever? Whistling

Ever since the Trickstuff and Cascade boutique stuff came on the scene, I've thought it was only a matter of time until sram made a brake that could at least equal the supposed power of trickstuff but at a more realistic price point.

I run the Cascade North Fork calipers and they do feel more powerful, but I wouldn't say its an enormous night and day difference. I've never tried the Trickstuff Maximas but do wonder how much better they can really be.

The fact that Cascade basically just made a caliper using larger pistons to be used with the code lever, I've always been expecting Sram to simply do the same with something mass produced and probably kill off Cascades caliper. Nothing stopping them from doing it...

The new black caliper does somehow look a lot bigger than the current code caliper. I'm wondering how big those pistons will be.

I've got to say I've always expected a new Code caliper to pop up that does the same thing as ours. Hasn't happened yet. Kind of funny considering it's specifically designed to work with Sram parts you can find in bike shops. Whatever this new Sram brake is will determine the future of our Code caliper.

I think the upper limit on brake power will be set by what is a reasonable amount of pad retract. I can't foresee people being okay with pad rub all the time so I don't think pad retract can get much less that what we use on our calipers. If you assume all calipers can be fitted with pads that have the best possible stopping power, braking power then just becomes a ratio of piston area to master cylinder area. The larger you make that ratio the more lever throw you have for a given pad retract. The only way to keep lever throw in check with a larger ratio is decreasing pad retract. Stuff like Swinglink can help, but the more aggressively you make it move through low end braking the more hand fatigue you get riding trails where you're trailing the brakes a lot. This is something we are pretty transparent about with our brake cams. You could potentially have a brake caliper with higher ultimate braking power than another that actually results in a higher average finger force in typical riding conditions. That's when this sort of mechanism would have gone too far. Max braking might be a 3000ish psi but more often than not you're at 1/2 to 3/4 of that. It's really only accessible when you're braking in a compression or the wheels just lock up. 

17
Simpancz
Posts
22
Joined
5/19/2022
Location
CA
4/12/2023 12:28pm
5Dev slapping sram direct mount transmission to non UDH Sb150 somehow?  

5Dev slapping sram direct mount transmission to non UDH Sb150 somehow?

 

image-20230412114421-1

It is matter of time when there will be available aftermarket adapter for non UDH frames (atleast for big players) IMO.

5DEV was teasing the new cranks design as well. They will be available after sea otter.

2
TannerVal
Posts
128
Joined
2/6/2016
Location
Hampton, NH, USA
4/12/2023 12:40pm
The latest photos of the unreleased sram caliper, the black one that looks a bit like the original Code caliper. It seems to look quite different...

The latest photos of the unreleased sram caliper, the black one that looks a bit like the original Code caliper. It seems to look quite different from the previous prototype that was red with paint splat effect over it. The shapes around the pistons are different, the latest black one is flatter and the red one had some unusual looking shapes on it. The piston area had bulges in the middle that the latest black one doesn't have.

I'm guessing the current Code is staying and this will be released as a dh specific brake, but it's interesting that theres been no spy shots of any completely new lever designs to go with this new caliper.

I know the new code lever is different but its only changed to be closer to the bars, apparently the internals have not changed.

Does anyone know if the red one is still being spotted being tested out in the wild by pros? Anyone have any ideas on what the bulges on the red one were all about?

I'm hoping the eventual production version looks more like the red one but it seems the black one has a model name which suggests thats the version they are going with?

75B1814C-539F-4561-860D-533015068453.jpeg?VersionId=r49UNm

 Completely new lever you were saying hasn’t been captured. Surprised no one seemed to cover it. (I posted this same picture on here like 2 weeks ago)

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