MTB Tech Rumors and Innovation

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Blake_Motley
Posts
193
Joined
11/14/2013
Location
Chula Vista, CA US
7/31/2025 6:43am
sethimus wrote:
they just need some riser bars, they have quite a balanced geo in large with the longer dropouts, look at forbiddens new druid core, they have...

they just need some riser bars, they have quite a balanced geo in large with the longer dropouts, look at forbiddens new druid core, they have a very similar geo

TEAMROBOT wrote:

The second law of thermodynamics in the Vital Forums: all tech rumors eventually devolve to a discussion about chainstay length. 

Have you noticed over the past few years that there has been one frame dimension that people obsess over? One year was head angle,  then reach...

Have you noticed over the past few years that there has been one frame dimension that people obsess over? One year was head angle,  then reach, then seat tube angle, stack  now it's chain stays..  Now seeing more people who are realizing that all those numbers have to work together...

I’m still sad we moved on from fork offset too early

14
7/31/2025 7:11am
TEAMROBOT wrote:

The second law of thermodynamics in the Vital Forums: all tech rumors eventually devolve to a discussion about chainstay length. 

Have you noticed over the past few years that there has been one frame dimension that people obsess over? One year was head angle,  then reach...

Have you noticed over the past few years that there has been one frame dimension that people obsess over? One year was head angle,  then reach, then seat tube angle, stack  now it's chain stays..  Now seeing more people who are realizing that all those numbers have to work together...

I’m still sad we moved on from fork offset too early

It could have lasted longer, but it's not as easily changed for the fork manufacturers..

2
nskerb
Posts
346
Joined
3/3/2020
Location
Kelso, WA US
7/31/2025 7:37am
sethimus wrote:
they just need some riser bars, they have quite a balanced geo in large with the longer dropouts, look at forbiddens new druid core, they have...

they just need some riser bars, they have quite a balanced geo in large with the longer dropouts, look at forbiddens new druid core, they have a very similar geo

TEAMROBOT wrote:

The second law of thermodynamics in the Vital Forums: all tech rumors eventually devolve to a discussion about chainstay length. 

Have you noticed over the past few years that there has been one frame dimension that people obsess over? One year was head angle,  then reach...

Have you noticed over the past few years that there has been one frame dimension that people obsess over? One year was head angle,  then reach, then seat tube angle, stack  now it's chain stays..  Now seeing more people who are realizing that all those numbers have to work together...

Seems like chainstay is like the only constant circle jerk. Stack seems to be a pretty obsessive metric at the moment.
4
Blake_Motley
Posts
193
Joined
11/14/2013
Location
Chula Vista, CA US
7/31/2025 9:11am
Have you noticed over the past few years that there has been one frame dimension that people obsess over? One year was head angle,  then reach...

Have you noticed over the past few years that there has been one frame dimension that people obsess over? One year was head angle,  then reach, then seat tube angle, stack  now it's chain stays..  Now seeing more people who are realizing that all those numbers have to work together...

I’m still sad we moved on from fork offset too early

It could have lasted longer, but it's not as easily changed for the fork manufacturers..

At the time they still had the 37mm crowns from the 26 inch days so there’s really no excuse

3
Blake_Motley
Posts
193
Joined
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Location
Chula Vista, CA US
7/31/2025 9:16am
TEAMROBOT wrote:

The second law of thermodynamics in the Vital Forums: all tech rumors eventually devolve to a discussion about chainstay length. 

Have you noticed over the past few years that there has been one frame dimension that people obsess over? One year was head angle,  then reach...

Have you noticed over the past few years that there has been one frame dimension that people obsess over? One year was head angle,  then reach, then seat tube angle, stack  now it's chain stays..  Now seeing more people who are realizing that all those numbers have to work together...

nskerb wrote:
Seems like chainstay is like the only constant circle jerk. Stack seems to be a pretty obsessive metric at the moment.

Narratively I think it makes sense, all these geo tweaks are downstream from one another. At least that’s what happens when you design bikes largely guided by market feedback instead of just testing things. Has any bike company been as vindicated as Geometron?

9
2
Jakub_G
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353
Joined
8/7/2019
Location
SK
7/31/2025 9:27am
Narratively I think it makes sense, all these geo tweaks are downstream from one another. At least that’s what happens when you design bikes largely guided...

Narratively I think it makes sense, all these geo tweaks are downstream from one another. At least that’s what happens when you design bikes largely guided by market feedback instead of just testing things. Has any bike company been as vindicated as Geometron?

I don't think so really

2
yzedf
Posts
245
Joined
1/27/2015
Location
Hebron, CT US
Fantasy
7/31/2025 10:05am

I started paying attention to geo about ten years ago. For a while there every enduro bike release was trying to update to get closer to the Giant Reign of 2015 without anyone really saying so. That was in the everything needs to be longer, lower and slacker days. Couple of outliers came along, Pole and Geometron being the ones I remember. 

For the most part, seated cockpit sizes still haven’t recovered. 645mm ett used to be large territory, now that’s an xl in a lot of brands. If you want that 78-80° seat tube, you need a 530-540 reach in xl and 460 chain stays. But then people whine about the wheelbase. So you get the Ibis Oso with that normal ett for an xl of 669 with a 540 reach but they chicken out and do 444 cs which makes no sense, because they don’t want to try to sell a wheelbase nearing 1360. 

I wish I was a medium sized rider so I could easily buy a bike that’s actually designed for me. Gotta squeeze some penny’s together for a Forbidden I guess?

8
1
7/31/2025 11:28am

I’m still sad we moved on from fork offset too early

It could have lasted longer, but it's not as easily changed for the fork manufacturers..

At the time they still had the 37mm crowns from the 26 inch days so there’s really no excuse

Aren't those being used on 27.5 forks now?

2
Loche
Posts
27
Joined
2/16/2021
Location
CA
7/31/2025 12:56pm

Push coming out with a V2 of their Nine One inverted fork. Damper and chassis are the same, but new spring system that let's you toggle a ramp up on/off. Seems pretty cool.

https://www.youtube.com/watch?v=PejLMCeY_6Y

 

4
Blake_Motley
Posts
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Joined
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Location
Chula Vista, CA US
7/31/2025 1:05pm

It could have lasted longer, but it's not as easily changed for the fork manufacturers..

At the time they still had the 37mm crowns from the 26 inch days so there’s really no excuse

Aren't those being used on 27.5 forks now?

You’re right, even less of an excuse for not having 37mm offset 29ers 

4
1
7/31/2025 1:06pm
Loche wrote:
Push coming out with a V2 of their Nine One inverted fork. Damper and chassis are the same, but new spring system that let's you toggle...

Push coming out with a V2 of their Nine One inverted fork. Damper and chassis are the same, but new spring system that let's you toggle a ramp up on/off. Seems pretty cool.

https://www.youtube.com/watch?v=PejLMCeY_6Y

 

Why are you ruining the chainstay length discussion with this actual tech news?

23
ballz
Posts
489
Joined
7/30/2024
Location
Ouagadougou EH
7/31/2025 1:25pm

At the time they still had the 37mm crowns from the 26 inch days so there’s really no excuse

Aren't those being used on 27.5 forks now?

You’re right, even less of an excuse for not having 37mm offset 29ers 

I have a new-ish 29 fork with 37mm offset and you can have one, too. You just have to built it from the parts yourself.

4
1
7/31/2025 1:27pm
Goupil wrote:
New Propain Hugene, hence why the previous generation was out of stock in my size... Welp I ended buiding a Tyee for a lot less money...

New Propain Hugene, hence why the previous generation was out of stock in my size... Welp I ended buiding a Tyee for a lot less money anyway 😆

https://www.propain-bikes.com/en/product/bikes/trail/hugene-cf/

I like my Hugene 2. 

I'm not sure if I would buy the new Hugene 3. It seems like it takes a step towards being more of a XC bike but doesn't go all the way.

1
Blake_Motley
Posts
193
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Location
Chula Vista, CA US
7/31/2025 1:31pm

Aren't those being used on 27.5 forks now?

You’re right, even less of an excuse for not having 37mm offset 29ers 

ballz wrote:

I have a new-ish 29 fork with 37mm offset and you can have one, too. You just have to built it from the parts yourself.

My 37mm offset aspirations are in direct conflict with my Fox podium aspirations Sad

You’re right though, a 37mm offset 38 or zeb would be pretty easy to build

2
1
ballz
Posts
489
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Location
Ouagadougou EH
7/31/2025 1:37pm

You’re right, even less of an excuse for not having 37mm offset 29ers 

ballz wrote:

I have a new-ish 29 fork with 37mm offset and you can have one, too. You just have to built it from the parts yourself.

My 37mm offset aspirations are in direct conflict with my Fox podium aspirations :(You’re right though, a 37mm offset 38 or zeb would be pretty easy...

My 37mm offset aspirations are in direct conflict with my Fox podium aspirations Sad

You’re right though, a 37mm offset 38 or zeb would be pretty easy to build

I feel your pain. I was forced to switch to 44mm offset when I got an Intend fork. The 37mm fork now lives on my HT.

1
1
7/31/2025 1:39pm

At the time they still had the 37mm crowns from the 26 inch days so there’s really no excuse

Aren't those being used on 27.5 forks now?

You’re right, even less of an excuse for not having 37mm offset 29ers 

If I may ask, what would be the goal? Slacken the head angle more with hopefully less wheel flop?

1
1
Blake_Motley
Posts
193
Joined
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Location
Chula Vista, CA US
7/31/2025 1:48pm

Aren't those being used on 27.5 forks now?

You’re right, even less of an excuse for not having 37mm offset 29ers 

If I may ask, what would be the goal? Slacken the head angle more with hopefully less wheel flop?

I think a shorter offset lets you corner more aggressively. You reduce the shopping cart effect so when you lean over on your side knobs the front wheel is less likely to tuck. At least that’s what I noticed going from 51 to 44 back in the day

4
1
Jotegr
Posts
353
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6/28/2024
Location
Interior, BC CA
7/31/2025 2:21pm Edited Date/Time 7/31/2025 2:24pm
roost66 wrote:

New Dt rim, supposedly stronger then the 541, built for heavier riders and intended only as a rear rim.  Fr 571 https://www.mtbdirect.com.au/products/fr571-rim?srsltid=AfmBOorjSL9gi0Lna8nhoNCxHIfd1yQL83oTWry_hq4QrPHeI0GIYtxi

Only supposed to be a rear rim, but uses the letters than many companies exclusively use to denote front tires/wheels/hubs/rim. Curious 

(I'm aware it follows DT's preexisting naming convention)

Will the DT police arrest me if I run these front and back?

Jokes aside, It's nice to see an alloy rim manufacturer make something recognizing the issues that heavy guys run into with alloy rims. I have yet to get an alloy rim to last me more than 2-3 months of consistent use before they develop stress factures at the eyelets or they simply won't take a sufficient true anymore. I'd consider trying out one of these seeing as it's purpose built, however!

 

Edit: I can't find any release info on this rim, and I certainly haven't been paying much attention, but this blog post from 2022 mentions the rim. Odd. 

1
7/31/2025 2:30pm Edited Date/Time 7/31/2025 2:36pm

Wasnt the FR541 ment to be the 'last' Rim you buy?
did it not live up to expectations? 

I've been running ARC30 rims/vault hub along with Turbine wheelsets and They've been fantastic an good pricing/warranty(havnt needed)

Edit: I see dtswiss have removed that quote from it's description

5
megastoke
Posts
24
Joined
4/9/2024
Location
La Grande, OR US
7/31/2025 2:42pm
Wasnt the FR541 ment to be the 'last' Rim you buy?did it not live up to expectations? I've been running ARC30 rims/vault hub along with Turbine wheelsets...

Wasnt the FR541 ment to be the 'last' Rim you buy?
did it not live up to expectations? 

I've been running ARC30 rims/vault hub along with Turbine wheelsets and They've been fantastic an good pricing/warranty(havnt needed)

Edit: I see dtswiss have removed that quote from it's description

I've been absolutely wailing on FR541s on my heavy ass ebike for a year now, including a few hits hard enough to flat DH tires, and the rims are still mint. I'm sure there are people out there destroying them, but it takes a lot to do it. 

1
roost66
Posts
113
Joined
2/4/2024
Location
Potsdam, NY US
Fantasy
7/31/2025 2:52pm
Wasnt the FR541 ment to be the 'last' Rim you buy?did it not live up to expectations? I've been running ARC30 rims/vault hub along with Turbine wheelsets...

Wasnt the FR541 ment to be the 'last' Rim you buy?
did it not live up to expectations? 

I've been running ARC30 rims/vault hub along with Turbine wheelsets and They've been fantastic an good pricing/warranty(havnt needed)

Edit: I see dtswiss have removed that quote from it's description

megastoke wrote:
I've been absolutely wailing on FR541s on my heavy ass ebike for a year now, including a few hits hard enough to flat DH tires, and...

I've been absolutely wailing on FR541s on my heavy ass ebike for a year now, including a few hits hard enough to flat DH tires, and the rims are still mint. I'm sure there are people out there destroying them, but it takes a lot to do it. 

I have dented 2 fr 541 and split 1 at the seam this year alone.  I do race DH, but run fairly high pressures.  I think there is definitely a place in the market for a beefed version.  

Also seems weird that all news coverage of this new rim is from aus and New Zealand, so maybe it’s been around down there for awhile?   

5
7/31/2025 3:39pm Edited Date/Time 7/31/2025 3:42pm
Wasnt the FR541 ment to be the 'last' Rim you buy?did it not live up to expectations? I've been running ARC30 rims/vault hub along with Turbine wheelsets...

Wasnt the FR541 ment to be the 'last' Rim you buy?
did it not live up to expectations? 

I've been running ARC30 rims/vault hub along with Turbine wheelsets and They've been fantastic an good pricing/warranty(havnt needed)

Edit: I see dtswiss have removed that quote from it's description

The FR 541 has been the worst rim I’ve ever had. Bent 2 of them to where they wouldn’t hold air within months. Nothing out of the ordinary: 170lb rider, park bike, DH casing tires at 30 psi, experienced rider but do not race. I’m going back to Flow EX3s on the park bike and am trying the Reserve alloy on the enduro bike.

2
1
7/31/2025 4:38pm
Wasnt the FR541 ment to be the 'last' Rim you buy?did it not live up to expectations? I've been running ARC30 rims/vault hub along with Turbine wheelsets...

Wasnt the FR541 ment to be the 'last' Rim you buy?
did it not live up to expectations? 

I've been running ARC30 rims/vault hub along with Turbine wheelsets and They've been fantastic an good pricing/warranty(havnt needed)

Edit: I see dtswiss have removed that quote from it's description

216ae1e8d99eea4d5467b5248b82ce09.png?VersionId=yL

Had to google the quote....but there it is.

7
monarchmason
Posts
300
Joined
5/24/2022
Location
Nevada City, CA US
7/31/2025 8:31pm

This is partially unrelated and unimportant but does anyone know what the numbers mean for the DT Swiss rim naming?

2
Scontoni
Posts
26
Joined
7/21/2024
Location
Christmas Island Shire of Christmas Island CX
7/31/2025 8:45pm
roost66 wrote:

New Dt rim, supposedly stronger then the 541, built for heavier riders and intended only as a rear rim.  Fr 571 https://www.mtbdirect.com.au/products/fr571-rim?srsltid=AfmBOorjSL9gi0Lna8nhoNCxHIfd1yQL83oTWry_hq4QrPHeI0GIYtxi

Jotegr wrote:
Only supposed to be a rear rim, but uses the letters than many companies exclusively use to denote front tires/wheels/hubs/rim. Curious (I'm aware it follows DT's preexisting...

Only supposed to be a rear rim, but uses the letters than many companies exclusively use to denote front tires/wheels/hubs/rim. Curious 

(I'm aware it follows DT's preexisting naming convention)

Will the DT police arrest me if I run these front and back?

Jokes aside, It's nice to see an alloy rim manufacturer make something recognizing the issues that heavy guys run into with alloy rims. I have yet to get an alloy rim to last me more than 2-3 months of consistent use before they develop stress factures at the eyelets or they simply won't take a sufficient true anymore. I'd consider trying out one of these seeing as it's purpose built, however!

 

Edit: I can't find any release info on this rim, and I certainly haven't been paying much attention, but this blog post from 2022 mentions the rim. Odd. 

Tristan just added the details to that Wheelworks post this week

The NZ distributor had the 571's listed on their "New Products" list before even DT had them listed, and they seem to put quite a bit into marketing DT products here

1
7/31/2025 9:04pm
Wasnt the FR541 ment to be the 'last' Rim you buy?did it not live up to expectations? I've been running ARC30 rims/vault hub along with Turbine wheelsets...

Wasnt the FR541 ment to be the 'last' Rim you buy?
did it not live up to expectations? 

I've been running ARC30 rims/vault hub along with Turbine wheelsets and They've been fantastic an good pricing/warranty(havnt needed)

Edit: I see dtswiss have removed that quote from it's description

The FR 541 has been the worst rim I’ve ever had. Bent 2 of them to where they wouldn’t hold air within months. Nothing out of...

The FR 541 has been the worst rim I’ve ever had. Bent 2 of them to where they wouldn’t hold air within months. Nothing out of the ordinary: 170lb rider, park bike, DH casing tires at 30 psi, experienced rider but do not race. I’m going back to Flow EX3s on the park bike and am trying the Reserve alloy on the enduro bike.

I've been smashing some new wheels coming out of Australia: https://ride-wingman.com/

The alloy rim is super tough and has held up better than the DT, Reserve Alloy and Stans I ran previously, plus it comes in silver

5
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