MTB Tech Rumors and Innovation

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sspomer
Posts
6033
Joined
6/26/2009
Location
Boise, ID US
6/6/2025 7:06am

gracey's norco has a new rear end. 1kg lighter than alloy

c0731cef-8c16-4223-a3f4-7ea4e42684a4.JPG?VersionId=MCDGvtCFfYdoqft
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6/6/2025 7:58am
TEAMROBOT wrote:
I'm really excited for the XTR embargo to be over so I can get more miles in on the new not-a-clutch clutch mechanism on my primary...

I'm really excited for the XTR embargo to be over so I can get more miles in on the new not-a-clutch clutch mechanism on my primary bike. Very curious how it will affect suspension feel to have spring force instead of friction controlling the cage on my long travel bike with relatively high anti-squat.

Should be interesting with the claimed 74%(?) increase in chain force, that is significant.

I feel the Shimano adjustable clutch system is currently the best option out there.

5
6/6/2025 8:35am

I'm a little surprised at the cost of the new Shimano drivetrain. 

I would consider it to replace my XO1 AXS shifter and derailleur (and move that to another bike) that I've been running with an XT chain and cassette. 

Almost $1,000 for shifter and derailleur is higher than I was expecting. 

5
Jotegr
Posts
339
Joined
6/28/2024
Location
Interior, BC CA
6/6/2025 8:58am Edited Date/Time 6/6/2025 8:58am
sspomer wrote:
gracey's norco has a new rear end. 1kg lighter than alloy

gracey's norco has a new rear end. 1kg lighter than alloy

c0731cef-8c16-4223-a3f4-7ea4e42684a4.JPG?VersionId=MCDGvtCFfYdoqft

I'm never going to be able to buy this f*cking bike, am I? 

11
lloyd506
Posts
249
Joined
7/10/2016
Location
CA
6/6/2025 9:05am

Transmission derailleurs aren’t cheap either, xo is 800 and XX is 950. 
Shimano pricing is on par with high end sram. It is also back compatible with existing chain and cassette. Transmission made it so you had to buy all new pieces when it was released. 

17
6/6/2025 9:14am Edited Date/Time 6/6/2025 9:14am
sspomer wrote:
gracey's norco has a new rear end. 1kg lighter than alloy

gracey's norco has a new rear end. 1kg lighter than alloy

c0731cef-8c16-4223-a3f4-7ea4e42684a4.JPG?VersionId=MCDGvtCFfYdoqft
Jotegr wrote:

I'm never going to be able to buy this f*cking bike, am I? 

maybe they got one step closer with a carbon stay ? looks like they are working in the right direction and slowly making improvements

3
Dogboy
Posts
65
Joined
4/12/2011
Location
Chapel Hill, NC US
6/6/2025 10:07am
I'm a little surprised at the cost of the new Shimano drivetrain. I would consider it to replace my XO1 AXS shifter and derailleur (and move that...

I'm a little surprised at the cost of the new Shimano drivetrain. 

I would consider it to replace my XO1 AXS shifter and derailleur (and move that to another bike) that I've been running with an XT chain and cassette. 

Almost $1,000 for shifter and derailleur is higher than I was expecting. 

I'll be interested to see how the XT pricing compares. We'll know soon enough and it's a more comparable kit to X0.

5
Carraig042
Posts
69
Joined
3/4/2013
Location
Jonesborough, TN US
6/6/2025 10:12am Edited Date/Time 6/6/2025 10:12am

Do we know when XT will be announced? 

2
HexonJuan
Posts
375
Joined
6/10/2015
Location
WI US
6/6/2025 10:16am
It's funny that everyone is up in arms over no clutch on the new XTR.. From the video I watched, it sounds like they just went...

It's funny that everyone is up in arms over no clutch on the new XTR.. From the video I watched, it sounds like they just went a different route to solve the chain slap issue by using 2 springs...

When folx get accustomed to a certain doodad being on all of their other doodads, the absence of such can be a bit traumatizing.

5
1
HexonJuan
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375
Joined
6/10/2015
Location
WI US
6/6/2025 10:17am
1llumA wrote:

Maybe Manitou will finally launch a coil shock but it's not yet ready hence the frame sock.

Now THAT is some optimism!

4
krabo83
Posts
714
Joined
12/26/2017
Location
AT
6/6/2025 10:19am
lloyd506 wrote:
Transmission derailleurs aren’t cheap either, xo is 800 and XX is 950. Shimano pricing is on par with high end sram. It is also back compatible with...

Transmission derailleurs aren’t cheap either, xo is 800 and XX is 950. 
Shimano pricing is on par with high end sram. It is also back compatible with existing chain and cassette. Transmission made it so you had to buy all new pieces when it was released. 

but you can't really compare wireless xtr to transmission, it's more like eagle axs and that was also compatible with existing 12 speed. shimano is 6 years late if we're being honest.

9
11
krabo83
Posts
714
Joined
12/26/2017
Location
AT
6/6/2025 10:27am
Dogboy wrote:

I'll be interested to see how the XT pricing compares. We'll know soon enough and it's a more comparable kit to X0.

XO is way beyond XT and closer to XTR , GX is more compareable to XT from my experience.

14
14
yzedf
Posts
239
Joined
1/27/2015
Location
Hebron, CT US
6/6/2025 10:29am
Carraig042 wrote:

Do we know when XT will be announced? 

I think last time it took about a year?

4
Dogboy
Posts
65
Joined
4/12/2011
Location
Chapel Hill, NC US
6/6/2025 10:37am
Dogboy wrote:

I'll be interested to see how the XT pricing compares. We'll know soon enough and it's a more comparable kit to X0.

krabo83 wrote:

XO is way beyond XT and closer to XTR , GX is more compareable to XT from my experience.

Yeah, can't agree with that at all. I work on these things all the time and GX quality is wayyyy lower than XT in my experience. I'll add that the new Shimano stuff is totally comparable to Transmission, which is just the latest iteration of SRAM's wireless drivetrain. Curious why you think it isn't. Because it doesn't require a proprietary frame standard to attach the derailleur?

11
4
Dogboy
Posts
65
Joined
4/12/2011
Location
Chapel Hill, NC US
6/6/2025 10:43am
Carraig042 wrote:

Do we know when XT will be announced? 

yzedf wrote:

I think last time it took about a year?

It'll be much, much sooner than that.

9
1
yzedf
Posts
239
Joined
1/27/2015
Location
Hebron, CT US
6/6/2025 11:29am
Dogboy wrote:
Yeah, can't agree with that at all. I work on these things all the time and GX quality is wayyyy lower than XT in my experience...

Yeah, can't agree with that at all. I work on these things all the time and GX quality is wayyyy lower than XT in my experience. I'll add that the new Shimano stuff is totally comparable to Transmission, which is just the latest iteration of SRAM's wireless drivetrain. Curious why you think it isn't. Because it doesn't require a proprietary frame standard to attach the derailleur?

UDH isn’t proprietary. SRAM doesn’t charge bike manufacturers to use it. 

Personally I think the UDH is a good thing AND I think the SRAM direct mount derailleur is a bad idea.

19
4
saskskier
Posts
324
Joined
11/4/2017
Location
Calgary, AB CA
6/6/2025 11:35am
Carraig042 wrote:

Do we know when XT will be announced? 

yzedf wrote:

I think last time it took about a year?

I've been told there definitely aren't going to be announcements about wireless XT and Deore next few weeks to month or so. 

3
lloyd506
Posts
249
Joined
7/10/2016
Location
CA
6/6/2025 11:38am
Dogboy wrote:

I'll be interested to see how the XT pricing compares. We'll know soon enough and it's a more comparable kit to X0.

krabo83 wrote:

XO is way beyond XT and closer to XTR , GX is more compareable to XT from my experience.

If you are going to compare apples to apples then it would be mechanical systems.  There is no way a GX mechanical system is anywhere close to the quality of XT. 
GX AXS derailleur is garbage, no clutch, poor durability, clunk and loud. 
XO transmission for the past two years of using has been problematic. 
Instead of having influencers standing derailleurs for marketing value shimano had riders hit derailleurs off rocks. More real world scenarios. When I did this with XO transmission the p-knuckle spring bent. Replacement of pknuckle and cage was $230 with an XX unit being the only one I could find at the time.  X0 replacement not available and had a 3 month lead time. 

8
5
ballz
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465
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7/30/2024
Location
Ouagadougou EH
6/6/2025 12:03pm
Dogboy wrote:

I'll be interested to see how the XT pricing compares. We'll know soon enough and it's a more comparable kit to X0.

krabo83 wrote:

XO is way beyond XT and closer to XTR , GX is more compareable to XT from my experience.

lloyd506 wrote:
If you are going to compare apples to apples then it would be mechanical systems.  There is no way a GX mechanical system is anywhere close...

If you are going to compare apples to apples then it would be mechanical systems.  There is no way a GX mechanical system is anywhere close to the quality of XT. 
GX AXS derailleur is garbage, no clutch, poor durability, clunk and loud. 
XO transmission for the past two years of using has been problematic. 
Instead of having influencers standing derailleurs for marketing value shimano had riders hit derailleurs off rocks. More real world scenarios. When I did this with XO transmission the p-knuckle spring bent. Replacement of pknuckle and cage was $230 with an XX unit being the only one I could find at the time.  X0 replacement not available and had a 3 month lead time. 

This GX AXS RD has no clutch? GX Eagle AXS Derailleur | RD-GX-1E-A1 | SRAM

 

2
roost66
Posts
111
Joined
2/4/2024
Location
Potsdam, NY US
6/6/2025 12:15pm Edited Date/Time 6/6/2025 12:15pm
Dogboy wrote:

I'll be interested to see how the XT pricing compares. We'll know soon enough and it's a more comparable kit to X0.

krabo83 wrote:

XO is way beyond XT and closer to XTR , GX is more compareable to XT from my experience.

lloyd506 wrote:
If you are going to compare apples to apples then it would be mechanical systems.  There is no way a GX mechanical system is anywhere close...

If you are going to compare apples to apples then it would be mechanical systems.  There is no way a GX mechanical system is anywhere close to the quality of XT. 
GX AXS derailleur is garbage, no clutch, poor durability, clunk and loud. 
XO transmission for the past two years of using has been problematic. 
Instead of having influencers standing derailleurs for marketing value shimano had riders hit derailleurs off rocks. More real world scenarios. When I did this with XO transmission the p-knuckle spring bent. Replacement of pknuckle and cage was $230 with an XX unit being the only one I could find at the time.  X0 replacement not available and had a 3 month lead time. 

Doesn’t sram have the same overload protection, in case you hit something it recoils in then shifts back? 
I know GX AXS has it, and it works well in my experience.  

6
Evil96
Posts
802
Joined
8/21/2014
Location
Portogruaro, VE IT
6/6/2025 1:09pm
Evil96 wrote:
Not gonna lie this leak got me excitedNew Evil bike for sure, no idea what model it could beIt has frame storage, bolts are differentLooks like...

Not gonna lie this leak got me excited

New Evil bike for sure, no idea what model it could be

It has frame storage, bolts are different

Looks like the flip chip design has 2 big bolts rather than the 3 smaller ones it had before 

Can’t wait to see what they’ve done!

(EDIT by @sspomer - PUSH asked us to nuke the photo as it was an accident that it went live)

thanks push for the hope in a new lineup

2
TEAMROBOT
Posts
1348
Joined
9/2/2009
Location
Los Angeles, CA US
6/6/2025 2:19pm Edited Date/Time 6/6/2025 10:38pm

I'm at Leogang this weekend and wanted to get a sense of how widely pedal kickback devices have been adopted by World Cuppers, along with all the other wild accessories like TMD's/shakeweights, electronics, gearboxes, and more. So out of curiosity and as a service to my fellow nerds, I stood at the top of Q1 today and counted all the devices I could. Note that certain devices were almost certainly undercounted, like shakeweights, added mass, and fancy chainring devices like Ochain or Rimpact (drivetrains were facing away from me in the starting lineup). There were 20 bikes total where I didn’t get a look at their chainring at all  

 
A total of 116 bikes were observed
25+ bikes with Ochain 
3+ bikes with Rimpact Chain Damper
11 bikes with Sidekick hub
25 bikes with STFU
17+ front shakeweights
3+ rear shakeweights
17 gearbox bikes
6 bikes running Two Chainz
3 running data acquisition
4+ with added mass strapped, taped, or zip-tied to down tube
6 bikes with electronic suspension of some sort
 
IMG 0095 0
Lessons:

More shakeweights than I expected

Pretty significant spread of pedal kickback devices. At least 39 of the 116 bikes I observed had some sort of visible pedal kickback device, like Ochain, Rimpact, or the Sidekick hub, and many of those bikes also had STFU.

I only saw one person with a front and rear shakeweight.

Pros really don't like it when you look at their bike and then write down notes on a yellow legal pad.

110
brash
Posts
942
Joined
4/24/2019
Location
AU
6/6/2025 2:22pm Edited Date/Time 6/6/2025 2:22pm

nah, that's the tally of how many people told you to STFU Robot lol Smile

Good work, thats actually interesting.

12
pheller
Posts
48
Joined
5/18/2016
Location
US
6/6/2025 2:31pm

The reporting we need. 

21
pheller
Posts
48
Joined
5/18/2016
Location
US
6/6/2025 2:49pm

Real interesting seeing how XTR has been deployed to WCDH riders. Hemstreet, one of the top female riders, on old news. Goldstone on newest bling. 

Makes me think that DH really isn't the brand's focus and a Saint update will probably be awhile. I feel like if they wanted us to believe that Saint was being phased out they'd push XTR hard as the "do it all" groupset. Is it possible that their wanting to use XTR in WCDH as more of testbed for Saint improvements? 

1
6/6/2025 3:53pm
TEAMROBOT wrote:
I'm at Leogang this weekend and wanted to get a sense of how widely pedal kickback devices have been adopted by World Cuppers, along with all the...

I'm at Leogang this weekend and wanted to get a sense of how widely pedal kickback devices have been adopted by World Cuppers, along with all the other wild accessories like TMD's/shakeweights, electronics, gearboxes, and more. So out of curiosity and as a service to my fellow nerds, I stood at the top of Q1 today and counted all the devices I could. Note that certain devices were almost certainly undercounted, like shakeweights, added mass, and fancy chainring devices like Ochain or Rimpact (drivetrains were facing away from me in the starting lineup). There were 20 bikes total where I didn’t get a look at their chainring at all  

 
A total of 116 bikes were observed
25+ bikes with Ochain 
3+ bikes with Rimpact Chain Damper
11 bikes with Sidekick hub
25 bikes with STFU
17+ front shakeweights
3+ rear shakeweights
17 gearbox bikes
6 bikes running Two Chainz
3 running data acquisition
4+ with added mass strapped, taped, or zip-tied to down tube
6 bikes with electronic suspension of some sort
 
IMG 0095 0
Lessons:

More shakeweights than I expected

Pretty significant spread of pedal kickback devices. At least 39 of the 116 bikes I observed had some sort of visible pedal kickback device, like Ochain, Rimpact, or the Sidekick hub, and many of those bikes also had STFU.

I only saw one person with a front and rear shakeweight.

Pros really don't like it when you look at their bike and then write down notes on a yellow legal pad.

Doing the work! 

So interesting, thanks for the data. 

I was convinced to try Ochain after your awesome review of it, and it improves my ride quality, so I can see why the pros won't some of the special sauce, anything that helps.

1
Splayleg
Posts
91
Joined
2/9/2017
Location
Los Gatos, CA US
6/6/2025 4:42pm
TEAMROBOT wrote:
I'm at Leogang this weekend and wanted to get a sense of how widely pedal kickback devices have been adopted by World Cuppers, along with all the...

I'm at Leogang this weekend and wanted to get a sense of how widely pedal kickback devices have been adopted by World Cuppers, along with all the other wild accessories like TMD's/shakeweights, electronics, gearboxes, and more. So out of curiosity and as a service to my fellow nerds, I stood at the top of Q1 today and counted all the devices I could. Note that certain devices were almost certainly undercounted, like shakeweights, added mass, and fancy chainring devices like Ochain or Rimpact (drivetrains were facing away from me in the starting lineup). There were 20 bikes total where I didn’t get a look at their chainring at all  

 
A total of 116 bikes were observed
25+ bikes with Ochain 
3+ bikes with Rimpact Chain Damper
11 bikes with Sidekick hub
25 bikes with STFU
17+ front shakeweights
3+ rear shakeweights
17 gearbox bikes
6 bikes running Two Chainz
3 running data acquisition
4+ with added mass strapped, taped, or zip-tied to down tube
6 bikes with electronic suspension of some sort
 
IMG 0095 0
Lessons:

More shakeweights than I expected

Pretty significant spread of pedal kickback devices. At least 39 of the 116 bikes I observed had some sort of visible pedal kickback device, like Ochain, Rimpact, or the Sidekick hub, and many of those bikes also had STFU.

I only saw one person with a front and rear shakeweight.

Pros really don't like it when you look at their bike and then write down notes on a yellow legal pad.

Doing the work! So interesting, thanks for the data. I was convinced to try Ochain after your awesome review of it, and it improves my ride quality, so...

Doing the work! 

So interesting, thanks for the data. 

I was convinced to try Ochain after your awesome review of it, and it improves my ride quality, so I can see why the pros won't some of the special sauce, anything that helps.

I’m up in the ochain gang too. OO and some of the other mob were on ochain but are not this year. Pretty sure I read on here about a dt Swiss sidekick style hub so maybe he’s on that. Can anyone confirm the dt system or was I just tripping?

5
Blake_Motley
Posts
157
Joined
11/14/2013
Location
Chula Vista, CA US
6/6/2025 7:06pm
TEAMROBOT wrote:
I'm at Leogang this weekend and wanted to get a sense of how widely pedal kickback devices have been adopted by World Cuppers, along with all the...

I'm at Leogang this weekend and wanted to get a sense of how widely pedal kickback devices have been adopted by World Cuppers, along with all the other wild accessories like TMD's/shakeweights, electronics, gearboxes, and more. So out of curiosity and as a service to my fellow nerds, I stood at the top of Q1 today and counted all the devices I could. Note that certain devices were almost certainly undercounted, like shakeweights, added mass, and fancy chainring devices like Ochain or Rimpact (drivetrains were facing away from me in the starting lineup). There were 20 bikes total where I didn’t get a look at their chainring at all  

 
A total of 116 bikes were observed
25+ bikes with Ochain 
3+ bikes with Rimpact Chain Damper
11 bikes with Sidekick hub
25 bikes with STFU
17+ front shakeweights
3+ rear shakeweights
17 gearbox bikes
6 bikes running Two Chainz
3 running data acquisition
4+ with added mass strapped, taped, or zip-tied to down tube
6 bikes with electronic suspension of some sort
 
IMG 0095 0
Lessons:

More shakeweights than I expected

Pretty significant spread of pedal kickback devices. At least 39 of the 116 bikes I observed had some sort of visible pedal kickback device, like Ochain, Rimpact, or the Sidekick hub, and many of those bikes also had STFU.

I only saw one person with a front and rear shakeweight.

Pros really don't like it when you look at their bike and then write down notes on a yellow legal pad.

Doing the work! So interesting, thanks for the data. I was convinced to try Ochain after your awesome review of it, and it improves my ride quality, so...

Doing the work! 

So interesting, thanks for the data. 

I was convinced to try Ochain after your awesome review of it, and it improves my ride quality, so I can see why the pros won't some of the special sauce, anything that helps.

Splayleg wrote:
I’m up in the ochain gang too. OO and some of the other mob were on ochain but are not this year. Pretty sure I read...

I’m up in the ochain gang too. OO and some of the other mob were on ochain but are not this year. Pretty sure I read on here about a dt Swiss sidekick style hub so maybe he’s on that. Can anyone confirm the dt system or was I just tripping?

Forever ago DT had a handlebar lever that pulled the two ratcheting rings apart, disengaging the hub. Troy was running it on his sender iirc

7
jazza_wil
Posts
86
Joined
5/10/2011
Location
whistler, BC CA
6/6/2025 7:26pm Edited Date/Time 6/6/2025 7:27pm
Doing the work! So interesting, thanks for the data. I was convinced to try Ochain after your awesome review of it, and it improves my ride quality, so...

Doing the work! 

So interesting, thanks for the data. 

I was convinced to try Ochain after your awesome review of it, and it improves my ride quality, so I can see why the pros won't some of the special sauce, anything that helps.

Splayleg wrote:
I’m up in the ochain gang too. OO and some of the other mob were on ochain but are not this year. Pretty sure I read...

I’m up in the ochain gang too. OO and some of the other mob were on ochain but are not this year. Pretty sure I read on here about a dt Swiss sidekick style hub so maybe he’s on that. Can anyone confirm the dt system or was I just tripping?

Forever ago DT had a handlebar lever that pulled the two ratcheting rings apart, disengaging the hub. Troy was running it on his sender iirc

11
6/6/2025 8:03pm
TEAMROBOT wrote:
I'm at Leogang this weekend and wanted to get a sense of how widely pedal kickback devices have been adopted by World Cuppers, along with all the...

I'm at Leogang this weekend and wanted to get a sense of how widely pedal kickback devices have been adopted by World Cuppers, along with all the other wild accessories like TMD's/shakeweights, electronics, gearboxes, and more. So out of curiosity and as a service to my fellow nerds, I stood at the top of Q1 today and counted all the devices I could. Note that certain devices were almost certainly undercounted, like shakeweights, added mass, and fancy chainring devices like Ochain or Rimpact (drivetrains were facing away from me in the starting lineup). There were 20 bikes total where I didn’t get a look at their chainring at all  

 
A total of 116 bikes were observed
25+ bikes with Ochain 
3+ bikes with Rimpact Chain Damper
11 bikes with Sidekick hub
25 bikes with STFU
17+ front shakeweights
3+ rear shakeweights
17 gearbox bikes
6 bikes running Two Chainz
3 running data acquisition
4+ with added mass strapped, taped, or zip-tied to down tube
6 bikes with electronic suspension of some sort
 
IMG 0095 0
Lessons:

More shakeweights than I expected

Pretty significant spread of pedal kickback devices. At least 39 of the 116 bikes I observed had some sort of visible pedal kickback device, like Ochain, Rimpact, or the Sidekick hub, and many of those bikes also had STFU.

I only saw one person with a front and rear shakeweight.

Pros really don't like it when you look at their bike and then write down notes on a yellow legal pad.

Doing the work! So interesting, thanks for the data. I was convinced to try Ochain after your awesome review of it, and it improves my ride quality, so...

Doing the work! 

So interesting, thanks for the data. 

I was convinced to try Ochain after your awesome review of it, and it improves my ride quality, so I can see why the pros won't some of the special sauce, anything that helps.

Splayleg wrote:
I’m up in the ochain gang too. OO and some of the other mob were on ochain but are not this year. Pretty sure I read...

I’m up in the ochain gang too. OO and some of the other mob were on ochain but are not this year. Pretty sure I read on here about a dt Swiss sidekick style hub so maybe he’s on that. Can anyone confirm the dt system or was I just tripping?

13
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