MTB Tech Rumors and Innovation

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12/15/2025 7:02am
Yeah this was going to be by next point - heavier wheels can make the tyre stick to the ground better (to a point) so isn't...

Yeah this was going to be by next point - heavier wheels can make the tyre stick to the ground better (to a point) so isn't guaranteed to be a negative thing. Plus like you say, heavier wheels normally bring more performance gain realative to the weight change. I've always felt most people could easily "sacrifice" a kg or 2 over the whole bike and gain a MASSIVE amount of performance and/or reliability with zero drawbacks but its hard to convince riders of that.....

 

Neko Mullaly did a video exactly on this a few years ago, I believe it was something like -

"heavy"/aggressive set up , eg dh tyres and coil suspension - this was fastest 

"light" set up - slower

"light" set up with weight added to make it the same is the heavy bike - barely any change in speed, maybe even fractionally faster? It was done well enough that the results were quite relevant IMO

The other tricky thing with tires is there’s always the question of what pressure and how stiff of a tire do you need. If you just...

The other tricky thing with tires is there’s always the question of what pressure and how stiff of a tire do you need. If you just needed to crush 12 mm tall chatter then low pressure, flexible tire, and super heavy wheel would be very smooth. But then it falls apart as you hit anything bigger. I know I certainly end up somewhere in the middle where it’s a little chattery on the really high frequency stuff but then I’ll pinch the sidewall hitting something taller. Not something that can be won on all fronts. The lack of sidewall height on bike tires kind of limits how much they can influence suspension tuning compared to other vehicles. With an off road race truck you pretty much don’t have to worry about tuning the shocks for small bump because the tires can eat a 10” tall bump if they have to. 

It depends if your racing or not really. A lot of people set up their bikes for comfort on their regular trails. If your racing you just...

It depends if your racing or not really. A lot of people set up their bikes for comfort on their regular trails. 

If your racing you just want to maximise cornering speed, so if it rattles your teeth out over some rocky chatter, just hold on as it worth it to exit the corner faster and save 0.5s on the next straight. Obviously have it high enough to not wreck a rim or pinch flat on the way down. 

Remember when Neko made his carbon rear end to the DH bike, and was hopeful it would improve suspension performance because of the lower sprung mass, even he was like, yeah I can't feel a difference. But the rear end did provide other benefits. 

IIRC the carbon rear end saved around 400 grams. If that isn't noticeable, I don't think the weight difference of a derailleur is going to be noticable. 

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1
12/15/2025 7:14am

Screenshot and link?  Spoiling us

1
bikelurker
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12/15/2025 7:21am

What are we considering as a "heavy wheelset" in the context of this conversation?

2
12/15/2025 7:48am

Combining some 2024-2025 redux and hopes for 2026, are there any rumors on consumer-focused data acquisition systems a la Motion Instruments - something much more accurate and useful than Shockwiz, but not nearly as complex as what's currently available.  

Anybody know if Spesh is considering doing anything with MI other than sitting on the IP?  Maybe integrating it into their bikes in some sort of proprietary fashion?  Been quiet for quite some time.

3
monarchmason
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12/15/2025 9:23am
bikelurker wrote:

What are we considering as a "heavy wheelset" in the context of this conversation?

Thats a good question. Curious about this too. Once upon a time I had a heavy WTB wheel set and WTB tires. The wheelset went on 2 bikes and in hindsight there were my favorite performing bikes. I thought it was just the frames, but now Im kind of thinking it may be the wheels after reading this. 

3
12/15/2025 9:43am

Posting this in both Tech Rumors threads for visibility.

Looks like a new/updated ohlins rear shock, as well as a different airspring top cap on the updated fork. IMG 9849 0

12
bikelurker
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12/15/2025 9:45am
bikelurker wrote:

What are we considering as a "heavy wheelset" in the context of this conversation?

Thats a good question. Curious about this too. Once upon a time I had a heavy WTB wheel set and WTB tires. The wheelset went on...

Thats a good question. Curious about this too. Once upon a time I had a heavy WTB wheel set and WTB tires. The wheelset went on 2 bikes and in hindsight there were my favorite performing bikes. I thought it was just the frames, but now Im kind of thinking it may be the wheels after reading this. 

I mean, I usually ride ex471 rear rims, 2.0-1.8-2.0 spokes, laced to whatever dtswiss hub I get my hands onto (28h straight pull hybrids right now). Same setup for the front, except for the 30mm,  slighty lighter rim (as I like "soft" front wheels) I suppose this is not light nor heavy of a wheelset...

3
12/15/2025 10:06am
Kapolczer wrote:
Posting this in both Tech Rumors threads for visibility.Looks like a new/updated ohlins rear shock, as well as a different airspring top cap on the updated...

Posting this in both Tech Rumors threads for visibility.

Looks like a new/updated ohlins rear shock, as well as a different airspring top cap on the updated fork. IMG 9849 0

There's an interesting travel/sag-o-meter type deal on that, it's connected to the shock hardware where it meets the frame as opposed to mounting either side of the spring. I love winter, it's peak rumours and r&d season!

12/15/2025 10:38am
Combining some 2024-2025 redux and hopes for 2026, are there any rumors on consumer-focused data acquisition systems a la Motion Instruments - something much more accurate...

Combining some 2024-2025 redux and hopes for 2026, are there any rumors on consumer-focused data acquisition systems a la Motion Instruments - something much more accurate and useful than Shockwiz, but not nearly as complex as what's currently available.  

Anybody know if Spesh is considering doing anything with MI other than sitting on the IP?  Maybe integrating it into their bikes in some sort of proprietary fashion?  Been quiet for quite some time.

My guess is they will sit'n spin on the IP to make sure no one but internal dev teams have access to it. 

No way a good faith, universally compatible product that can be used by other competing entities for development will be released from the S. Happy to be proved wrong as I REALLY want the MI kit but this feels like something that will never see the light of day now that it's been ingested by phagocytic IP entities.

7
dolface
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12/15/2025 11:03am
Combining some 2024-2025 redux and hopes for 2026, are there any rumors on consumer-focused data acquisition systems a la Motion Instruments - something much more accurate...

Combining some 2024-2025 redux and hopes for 2026, are there any rumors on consumer-focused data acquisition systems a la Motion Instruments - something much more accurate and useful than Shockwiz, but not nearly as complex as what's currently available.  

Anybody know if Spesh is considering doing anything with MI other than sitting on the IP?  Maybe integrating it into their bikes in some sort of proprietary fashion?  Been quiet for quite some time.

I haven't heard anything (I had my System 2 MI order cancelled the day before it was supposed to ship 😡) and keep an eye on this thread for any hints/signs of hope.

1
grinch
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12/15/2025 12:57pm
Goupil wrote:

Now the question is how many chainstay length debate can we fit here before the end of the year? 

I think the real question is "What's the next geometry number to be debated? " I think they have all been covered at this point..  Maybe...

I think the real question is "What's the next geometry number to be debated? " I think they have all been covered at this point..  Maybe we can debate the 1.8 ratio?

Headtube lengths?

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1
12/15/2025 1:12pm

Schwalbe Radials are my innovation of the year. They came out in August 2024, but after riding them in all 4 seasons It'd be hard to go back to running a non-radial in the front.

13
Robstyle
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12/15/2025 1:46pm
The other tricky thing with tires is there’s always the question of what pressure and how stiff of a tire do you need. If you just...

The other tricky thing with tires is there’s always the question of what pressure and how stiff of a tire do you need. If you just needed to crush 12 mm tall chatter then low pressure, flexible tire, and super heavy wheel would be very smooth. But then it falls apart as you hit anything bigger. I know I certainly end up somewhere in the middle where it’s a little chattery on the really high frequency stuff but then I’ll pinch the sidewall hitting something taller. Not something that can be won on all fronts. The lack of sidewall height on bike tires kind of limits how much they can influence suspension tuning compared to other vehicles. With an off road race truck you pretty much don’t have to worry about tuning the shocks for small bump because the tires can eat a 10” tall bump if they have to. 

It depends if your racing or not really. A lot of people set up their bikes for comfort on their regular trails. If your racing you just...

It depends if your racing or not really. A lot of people set up their bikes for comfort on their regular trails. 

If your racing you just want to maximise cornering speed, so if it rattles your teeth out over some rocky chatter, just hold on as it worth it to exit the corner faster and save 0.5s on the next straight. Obviously have it high enough to not wreck a rim or pinch flat on the way down. 

Remember when Neko made his carbon rear end to the DH bike, and was hopeful it would improve suspension performance because of the lower sprung mass, even he was like, yeah I can't feel a difference. But the rear end did provide other benefits. 

IIRC the carbon rear end saved around 400 grams. If that isn't noticeable, I don't think the weight difference of a derailleur is going to be...

IIRC the carbon rear end saved around 400 grams. If that isn't noticeable, I don't think the weight difference of a derailleur is going to be noticable. 

I swapped out gx transmission/cassette for Gen 1 axs/xo DH which saved around 300gm I think, the difference was very noticeable. Same shock, same pressures, same tyres. Retrospectively, perhaps rebound could be sped up to counter the heavier setup, but seems like a bandaid solution I guess. 

I've had nothing but bother with transmission, it does shift awesome under load when it's running right. It's been interesting trying di2 wireless, I think it's the superior system. B-tension and more emphasis on micro adjustment (with greater range than sram) in inital setup seems like a better solution to me. Transmission cages take a hiding hanging so low too. 

Sorry this turned into a rant about my dislike of transmission rather than a valid point 

3
12/15/2025 2:54pm

My favorite thing is his says “the best or nothing” and he rides a banshee lmaooo 

sethimus wrote:

still one of the few frames with proper geo

Absolutely not for me. Way too tall way to long way way too big chain stays. 

11
dolface
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12/15/2025 4:18pm

My favorite thing is his says “the best or nothing” and he rides a banshee lmaooo 

sethimus wrote:

still one of the few frames with proper geo

Absolutely not for me. Way too tall way to long way way too big chain stays. 

2
1
12/15/2025 4:35pm
Combining some 2024-2025 redux and hopes for 2026, are there any rumors on consumer-focused data acquisition systems a la Motion Instruments - something much more accurate...

Combining some 2024-2025 redux and hopes for 2026, are there any rumors on consumer-focused data acquisition systems a la Motion Instruments - something much more accurate and useful than Shockwiz, but not nearly as complex as what's currently available.  

Anybody know if Spesh is considering doing anything with MI other than sitting on the IP?  Maybe integrating it into their bikes in some sort of proprietary fashion?  Been quiet for quite some time.

dolface wrote:
I haven't heard anything (I had my System 2 MI order cancelled the day before it was supposed to ship 😡) and keep an eye on...

I haven't heard anything (I had my System 2 MI order cancelled the day before it was supposed to ship 😡) and keep an eye on this thread for any hints/signs of hope.

Me too.  Bet the vinn diagram of MI2 preorders and people with a vital profile was pretty much a single circle.

Here's to hoping 2026 is the year!

3
seanfisseli
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12/15/2025 6:58pm

My favorite thing is his says “the best or nothing” and he rides a banshee lmaooo 

sethimus wrote:

still one of the few frames with proper geo

Absolutely not for me. Way too tall way to long way way too big chain stays. 

Banshee is perfect except for dropper insertion 

10
3
12/15/2025 10:43pm
Kapolczer wrote:
Posting this in both Tech Rumors threads for visibility.Looks like a new/updated ohlins rear shock, as well as a different airspring top cap on the updated...

Posting this in both Tech Rumors threads for visibility.

Looks like a new/updated ohlins rear shock, as well as a different airspring top cap on the updated fork. IMG 9849 0

And prototype radial-casing-esque Cannibals. 

7
Yoda
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12/16/2025 1:25am Edited Date/Time 12/16/2025 1:27am
Kapolczer wrote:
Posting this in both Tech Rumors threads for visibility.Looks like a new/updated ohlins rear shock, as well as a different airspring top cap on the updated...

Posting this in both Tech Rumors threads for visibility.

Looks like a new/updated ohlins rear shock, as well as a different airspring top cap on the updated fork. IMG 9849 0

And prototype radial-casing-esque Cannibals. 

Bruni said the bike is the best on the circuit but I've always wondered about tires and if the team has a disadvantage... Spec tires are great value for money and a good option for regular riding but I've always found them a tier below maxxis/conti's top tier (and haven't tried radials yet). Then again I'm not riding at Loic or Finns pace. 

We might see the Brembos make an appearance soon. I think I spied silver caliper/lever brembos on a story of Finn's turbo levo a few weeks back. 

2
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faxxe
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12/16/2025 2:38am
Yoda wrote:
Bruni said the bike is the best on the circuit but I've always wondered about tires and if the team has a disadvantage... Spec tires are...

Bruni said the bike is the best on the circuit but I've always wondered about tires and if the team has a disadvantage... Spec tires are great value for money and a good option for regular riding but I've always found them a tier below maxxis/conti's top tier (and haven't tried radials yet). Then again I'm not riding at Loic or Finns pace. 

We might see the Brembos make an appearance soon. I think I spied silver caliper/lever brembos on a story of Finn's turbo levo a few weeks back. 

Have you tried the Cannibals? They are seriously good tires

10
12/16/2025 2:46am
Kapolczer wrote:
Posting this in both Tech Rumors threads for visibility.Looks like a new/updated ohlins rear shock, as well as a different airspring top cap on the updated...

Posting this in both Tech Rumors threads for visibility.

Looks like a new/updated ohlins rear shock, as well as a different airspring top cap on the updated fork. IMG 9849 0

Saw this and came to check if anyone beat me to it!

Ohlins currently put the spring in the right hand fork leg, so unless they've stopped that, that is a new damper in the left leg

3
12/16/2025 5:05am
Kapolczer wrote:
Posting this in both Tech Rumors threads for visibility.Looks like a new/updated ohlins rear shock, as well as a different airspring top cap on the updated...

Posting this in both Tech Rumors threads for visibility.

Looks like a new/updated ohlins rear shock, as well as a different airspring top cap on the updated fork. IMG 9849 0

And prototype radial-casing-esque Cannibals. 

Any particular reason you think these are radials?

8
jsray
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Fantasy
12/16/2025 9:42am Edited Date/Time 12/16/2025 9:44am
Kapolczer wrote:
Posting this in both Tech Rumors threads for visibility.Looks like a new/updated ohlins rear shock, as well as a different airspring top cap on the updated...

Posting this in both Tech Rumors threads for visibility.

Looks like a new/updated ohlins rear shock, as well as a different airspring top cap on the updated fork. IMG 9849 0

And prototype radial-casing-esque Cannibals. 

Any particular reason you think these are radials?

there were rumors towards the end of the WC series that spec was working on radials. finns tires have the labels covered.

4
12/16/2025 10:03pm
jsray wrote:

there were rumors towards the end of the WC series that spec was working on radials. finns tires have the labels covered.

Yea, and every brand has been re-tooling/messing with their casings since the Radials dropped. Specialized has their own R&D tire lab just for race tires, so they're always cooking stuff up. We'll see most of the brands have some sort of 'updated casing' dropping in 2026-ish. They won't all be full-on Radial, but will likely all be going that direction, if even just a little bit. As has been discussed many times, the current Maxxis High Roller 3 in the DH casing has a different casing from all the other tires. Maxxis will be rolling out the new casings soon with PR, etc. I suspect they have further modified it since the High Roller 3 went into production. 

9
johann377
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12/18/2025 3:59am Edited Date/Time 12/18/2025 4:00am
IMG 7807

Not sure if this is real and if it’s been posted. New decals for Öhlins forks. Looks horrid in comparison to the old decals. 

24
bikelurker
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12/18/2025 4:31am
johann377 wrote:
Not sure if this is real and if it’s been posted. New decals for Öhlins forks. Looks horrid in comparison to the old decals. 
IMG 7807

Not sure if this is real and if it’s been posted. New decals for Öhlins forks. Looks horrid in comparison to the old decals. 

Just stick a pair of googly eyes over them. A snake tongue maybe or some shark teeth. We should at least try to have some fun with them, because they are indeed horrid

6
12/18/2025 6:28am
johann377 wrote:
Not sure if this is real and if it’s been posted. New decals for Öhlins forks. Looks horrid in comparison to the old decals. 
IMG 7807

Not sure if this is real and if it’s been posted. New decals for Öhlins forks. Looks horrid in comparison to the old decals. 

Putting the new logo onto a fork doesn't help it.. That old logo was so iconic across so many different fields that it just makes no sense to me..  @jeff.brines find the person responsible for this an interview them.. 

23
monarchmason
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12/18/2025 7:12am

I dont know Im usually someone to nit pick and bitch about things in this thread, but honestly looking at the logo does not look that bad. Its weird given that it has a heritage and the old one did look okay. But objectively, it still looks okay. Its just different. Now one thing I would like to see is the molded/cncd logo on their rear shocks, I hope that does not adopt the new one. But if it does, whatever. It least they are not making their forks bright orange. 

4
5
johann377
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12/18/2025 8:31am
I dont know Im usually someone to nit pick and bitch about things in this thread, but honestly looking at the logo does not look that...

I dont know Im usually someone to nit pick and bitch about things in this thread, but honestly looking at the logo does not look that bad. Its weird given that it has a heritage and the old one did look okay. But objectively, it still looks okay. Its just different. Now one thing I would like to see is the molded/cncd logo on their rear shocks, I hope that does not adopt the new one. But if it does, whatever. It least they are not making their forks bright orange. 

image 518.png?VersionId=u2mFyHjLm9 9oykisKeoZP

 

I don't know, I love the yellow lowers that Goodman Santa Cruz was running for some time.

2
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