MTB Tech Rumors and Innovation

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FullSend
Posts
193
Joined
7/14/2021
Location
DE
11/20/2025 7:12am

To celebrate making it to 1000 pages in the Tech Rumors thread, here's some news about the one "innovation" no one asked for:

The UCI just communicated that they will allow 32" wheels for use in XC mountainbike competition for the 2026 season. 

Though they very specifically stated only the 2026 season, so here's to hoping they will come to their senses for 2027 and beyond.

For the 2026 season this will probably mean lots of frankenstein'd 32" prototypes at the races.

15
11/20/2025 7:34am

Rumour-ish, but the Transition Spire will not be updated until mid to late next year. Transition focusing on the TR11 (which we know) and some e-bike stuff.

14
matmattmatthew
Posts
374
Joined
6/14/2014
Location
Fresh Prince of Bel Air, MD US
11/20/2025 8:21am

Since the UCI said allowing 32” wheels applies to DH as well as XC.  Let’s place bets on which company will be the first to try and 32”/29” mega-mullet DH bike.  I’m not saying it will ever go into production or even raced at a WC, but there has to be at least one manufacturer/team that will experiment.  

3
ZAKBROWN!
Posts
107
Joined
8/28/2009
Location
Salt Lake City, UT US
Fantasy
11/20/2025 8:33am
Since the UCI said allowing 32” wheels applies to DH as well as XC.  Let’s place bets on which company will be the first to try...

Since the UCI said allowing 32” wheels applies to DH as well as XC.  Let’s place bets on which company will be the first to try and 32”/29” mega-mullet DH bike.  I’m not saying it will ever go into production or even raced at a WC, but there has to be at least one manufacturer/team that will experiment.  

Aon Racing for sure, they love to get weird.  

7
11/20/2025 8:34am

Come to think of it, Devinci will most likely be launching a long-overdue Spartan update this year. Heard it will match the rest of the lineup as a made-in-Canada frame with similar design language. Allegedly, some very aggressive geo as well. Also, new Norco DH bike....

3
bnsleit
Posts
123
Joined
9/27/2021
Location
Missoula, MT US
11/20/2025 8:35am
Since the UCI said allowing 32” wheels applies to DH as well as XC.  Let’s place bets on which company will be the first to try...

Since the UCI said allowing 32” wheels applies to DH as well as XC.  Let’s place bets on which company will be the first to try and 32”/29” mega-mullet DH bike.  I’m not saying it will ever go into production or even raced at a WC, but there has to be at least one manufacturer/team that will experiment.  

$5 on Gamux x Manitou if Reece stays with those partners. Seems like they're hellbent on trying everything. The thigh-grippers/femoral artery shredder device will need redesigned to fit those 32" wheels though

18
1
11/20/2025 9:16am
Since the UCI said allowing 32” wheels applies to DH as well as XC.  Let’s place bets on which company will be the first to try...

Since the UCI said allowing 32” wheels applies to DH as well as XC.  Let’s place bets on which company will be the first to try and 32”/29” mega-mullet DH bike.  I’m not saying it will ever go into production or even raced at a WC, but there has to be at least one manufacturer/team that will experiment.  

Mega-mega mullet, 32/26

5
Ambushell
Posts
35
Joined
3/30/2020
Location
Aurora, CO US
11/20/2025 9:39am

I for one am tired of all of these fancy suspension designs. when will a company invent a frame without rear suspension? no more pesky bearing service or arguments about chain growth. True progress!

7
11/20/2025 9:44am
Since the UCI said allowing 32” wheels applies to DH as well as XC.  Let’s place bets on which company will be the first to try...

Since the UCI said allowing 32” wheels applies to DH as well as XC.  Let’s place bets on which company will be the first to try and 32”/29” mega-mullet DH bike.  I’m not saying it will ever go into production or even raced at a WC, but there has to be at least one manufacturer/team that will experiment.  

Someone will have to make some 32" DH tires first. As soon as that happens I would expect lots of experiments to happen. 

2
dwhere
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203
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10/5/2023
Location
dirty, DE US
Fantasy
11/20/2025 9:48am

photo

2
11/20/2025 9:52am
Definitely! Thanks for the solid linked pic as well!Yeah, thats what I am trying to wrap my head around because there's definitely more beneath the surface...

Definitely! Thanks for the solid linked pic as well!

Yeah, thats what I am trying to wrap my head around because there's definitely more beneath the surface on that one... Be freaking cool if its a way inside that they can totally isolate the drivetrain from suspension 

Looks like there's not just a pulley on the BB spindle, they've also squeezed a tensioner in there for the second chain.

p4pb29045765

Interesting that they've taken this approach vs how Pivot handles it with an eccentric axle.

Screenshot 2025-11-20 at 12.51.39%E2%80%AFPM
5
11/20/2025 10:06am
Definitely! Thanks for the solid linked pic as well!Yeah, thats what I am trying to wrap my head around because there's definitely more beneath the surface...

Definitely! Thanks for the solid linked pic as well!

Yeah, thats what I am trying to wrap my head around because there's definitely more beneath the surface on that one... Be freaking cool if its a way inside that they can totally isolate the drivetrain from suspension 

chriskief wrote:
Looks like there's not just a pulley on the BB spindle, they've also squeezed a tensioner in there for the second chain.Interesting that they've taken this...

Looks like there's not just a pulley on the BB spindle, they've also squeezed a tensioner in there for the second chain.

p4pb29045765

Interesting that they've taken this approach vs how Pivot handles it with an eccentric axle.

Screenshot 2025-11-20 at 12.51.39%E2%80%AFPM

the tensioner is on the wrong side if you want an ochain alternative!

 

2
11/20/2025 10:08am Edited Date/Time 11/20/2025 10:08am
FullSend wrote:
To celebrate making it to 1000 pages in the Tech Rumors thread, here's some news about the one "innovation" no one asked for:The UCI just communicated...

To celebrate making it to 1000 pages in the Tech Rumors thread, here's some news about the one "innovation" no one asked for:

The UCI just communicated that they will allow 32" wheels for use in XC mountainbike competition for the 2026 season. 

Though they very specifically stated only the 2026 season, so here's to hoping they will come to their senses for 2027 and beyond.

For the 2026 season this will probably mean lots of frankenstein'd 32" prototypes at the races.

So glad all those 6'8" UCI XC riders can finally fit on properly sized bikes!

11
Big Bird
Posts
2322
Joined
2/1/2011
Location
Oceano, CA US
11/20/2025 10:36am
Primoz wrote:

What's the 6-7 thing? 

About two meters.

25
11/20/2025 10:37am

SRAM AXS beta firmware... looks like they've got a faster Bluetooth protocol coming...

Screenshot 2025-11-20 at 1.35.13%E2%80%AFPM
5
11/20/2025 10:47am

Since we talked about the Demo yesterday

https://www.pinkbike.com/news/specialized-patent-reveals-demo-two-chain-drivetrain-layout.html

awesome to understand a bit more about that bike!

now... release it please

I appreciate how the drawing looks like what happens in linkage if you only model the rear end and don't set the rest of the geo properly, like fork length etc and you get this weird 100mm travel 85 degree head angle DH bike😅

6
kane
Posts
47
Joined
5/1/2024
Location
Iederwangen CH
11/20/2025 11:24am

Ratio have just released a modular, servicable mech with a direct hanger option. Similar concept to the Madrone Jab in that it has replacable fins for different shifter and cassette combos. I'd love to see a comparison review of these because currently the derailleur is one of the fastest wearing components on my bike and so a fully servicable one would be cool.

7
One Ghost
Posts
162
Joined
8/1/2009
Location
Tacoma, WA US
11/20/2025 4:00pm
pnwhut wrote:
On the topic of 6 bar pedal bikes, anyone got info on this? Spotted at my local trails a while back, seems pretty dialed for a...

On the topic of 6 bar pedal bikes, anyone got info on this? Spotted at my local trails a while back, seems pretty dialed for a proto…. GPTempDownload

It kinda looks like it could be a generic bike out of Asia also. I have seen quite a few open mold companies selling direct and coming out side some actually nice looking designs. It could also explain the parts mix that is on it. If it was a photo for a larger company, it wouldn't have lower/mid-tier products on it. That said, what's going on with the chain stay? It looks beat to hell and I'm hoping that black piece is just a shadow, it looks like it's a leaf spring or just flat out broken. 

7
Carraig042
Posts
76
Joined
3/4/2013
Location
Jonesborough, TN US
11/20/2025 5:15pm
kane wrote:
Ratio have just released a modular, servicable mech with a direct hanger option. Similar concept to the Madrone Jab in that it has replacable fins for...

Ratio have just released a modular, servicable mech with a direct hanger option. Similar concept to the Madrone Jab in that it has replacable fins for different shifter and cassette combos. I'd love to see a comparison review of these because currently the derailleur is one of the fastest wearing components on my bike and so a fully servicable one would be cool.

Know of any US distribution for them? The duties/fees etc would probably make it pretty prohibitive currently. 

2
TomJones
Posts
29
Joined
9/22/2015
Location
San Jose, CA US
11/20/2025 5:44pm
pnwhut wrote:
On the topic of 6 bar pedal bikes, anyone got info on this? Spotted at my local trails a while back, seems pretty dialed for a...

On the topic of 6 bar pedal bikes, anyone got info on this? Spotted at my local trails a while back, seems pretty dialed for a proto…. GPTempDownload

One Ghost wrote:
It kinda looks like it could be a generic bike out of Asia also. I have seen quite a few open mold companies selling direct and...

It kinda looks like it could be a generic bike out of Asia also. I have seen quite a few open mold companies selling direct and coming out side some actually nice looking designs. It could also explain the parts mix that is on it. If it was a photo for a larger company, it wouldn't have lower/mid-tier products on it. That said, what's going on with the chain stay? It looks beat to hell and I'm hoping that black piece is just a shadow, it looks like it's a leaf spring or just flat out broken. 

Heel rub

9
11/20/2025 7:18pm

Peeked the prototype sixfinity Yeti SB160 while on my ride today. Didn’t get the greatest look as they were being sneaky-sneaky with it. I chatted to the product manager (who was on SB140) a bit, all he’d divulge was that it was the SB160 and that it’s a “sweet bike”, while the guy on the 160 was hiding in the bushes. But what I saw was a vertical shock orientation, and frame storage door, looked sleek AF and could be close to production ready... 

28
11/20/2025 8:19pm

I know the visuals and tubing profiles aren't the same, but the suspension design is (minus the horst link) 

 

17636986866259085924065954122537
4
1
11/20/2025 8:53pm
Poleczechy wrote:
Peeked the prototype sixfinity Yeti SB160 while on my ride today. Didn’t get the greatest look as they were being sneaky-sneaky with it. I chatted to...

Peeked the prototype sixfinity Yeti SB160 while on my ride today. Didn’t get the greatest look as they were being sneaky-sneaky with it. I chatted to the product manager (who was on SB140) a bit, all he’d divulge was that it was the SB160 and that it’s a “sweet bike”, while the guy on the 160 was hiding in the bushes. But what I saw was a vertical shock orientation, and frame storage door, looked sleek AF and could be close to production ready... 

Any hints about the DH bike project?

1
Uncle Cliffy
Posts
400
Joined
3/11/2010
Location
Medford, OR US
11/20/2025 10:38pm

Since we talked about the Demo yesterday

https://www.pinkbike.com/news/specialized-patent-reveals-demo-two-chain-drivetrain-layout.html

awesome to understand a bit more about that bike!

now... release it please

Crazy thing: a friend of mine was told their race team won’t get them until May or June. Basically halfway through the season. They have to come up with something else to start the year on...

4
ShapeThings
Posts
123
Joined
8/19/2018
Location
Oakland, CA US
11/20/2025 10:42pm

Mega-mega mullet, 32/26

Is a Penny-farthing the actual true crab? 

guillaume-bout-otb-carbone-or-persp-avant.jpg?VersionId=1FtA11Jj2mTqNU
10
6
shape
Posts
12
Joined
9/5/2015
Location
PL
11/20/2025 11:49pm
davego wrote:
are tehre any new fenders for the podium in the making? i saw a picture somewhere about a fender attached to the carbon guards, maybe someone...

are tehre any new fenders for the podium in the making? i saw a picture somewhere about a fender attached to the carbon guards, maybe someone has a photo?

VisionVelo

4
krabo83
Posts
723
Joined
12/26/2017
Location
AT
11/21/2025 3:42am
Poleczechy wrote:
Peeked the prototype sixfinity Yeti SB160 while on my ride today. Didn’t get the greatest look as they were being sneaky-sneaky with it. I chatted to...

Peeked the prototype sixfinity Yeti SB160 while on my ride today. Didn’t get the greatest look as they were being sneaky-sneaky with it. I chatted to the product manager (who was on SB140) a bit, all he’d divulge was that it was the SB160 and that it’s a “sweet bike”, while the guy on the 160 was hiding in the bushes. But what I saw was a vertical shock orientation, and frame storage door, looked sleek AF and could be close to production ready... 

downtube storage sounds nice, but hope that doesn‘t make the downtube as thick looking as a light e-bike (looking at you santa cruz).

4
11/21/2025 4:42am
Poleczechy wrote:
Peeked the prototype sixfinity Yeti SB160 while on my ride today. Didn’t get the greatest look as they were being sneaky-sneaky with it. I chatted to...

Peeked the prototype sixfinity Yeti SB160 while on my ride today. Didn’t get the greatest look as they were being sneaky-sneaky with it. I chatted to the product manager (who was on SB140) a bit, all he’d divulge was that it was the SB160 and that it’s a “sweet bike”, while the guy on the 160 was hiding in the bushes. But what I saw was a vertical shock orientation, and frame storage door, looked sleek AF and could be close to production ready... 

krabo83 wrote:

downtube storage sounds nice, but hope that doesn‘t make the downtube as thick looking as a light e-bike (looking at you santa cruz).

Nope, the tubing didnt look any thicker than the current line up of bikes. 

3
krabo83
Posts
723
Joined
12/26/2017
Location
AT
11/21/2025 5:15am
Poleczechy wrote:

Nope, the tubing didnt look any thicker than the current line up of bikes. 

nice, guess launch will be around summer 2026.

2
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