MTB Tech Rumors and Innovation

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thegromit
Posts
212
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11/19/2015
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Durango, CO US
5/27/2025 10:24am
iceman2058 wrote:
iceman2058 wrote:
We had a request for clarification pop up on the post, here's the answer from Öhlins with some more details around the changes being discussed in...

We had a request for clarification pop up on the post, here's the answer from Öhlins with some more details around the changes being discussed in the press release above: 

The new surface treatment has reduced friction, and the compression damping base tune has been backed off a little. As a result, the fork feels softer. To compensate, the spring curve has been made a little bit more progressive, through the addition of spacers in the ramp-up chamber (yes, it's still the same, 3-chambner design). The "booster" they mention is some kind of insert or spacer that reduces the volume in the lower leg on the damper side, meaning they are using the lowers as part of the total spring system as well. Additionally, in the RXF38 m.3 they have removed both spacers from the negative spring (they are both included in the box), while the DH38 m.2 still has one spacer installed from factory in the negative spring.

The "booster" looks like what you would see in a moto spring perch. Which typically controls the low bath fluid flow. I would be super interested in how it works on an MTB fork. I am surprised that something like this hasnt come sooner but there isn't much volume to play with on here. These might be really nice with a coil fork and messing with oil volume heights. 

https://www.budracing-usa.com/us/kyb-showa-factory-style-fork-spring-se…;

2
Shinook
Posts
138
Joined
12/29/2015
Location
Asheville, NC US
5/27/2025 10:53am Edited Date/Time 5/27/2025 10:54am

IIRC Ohlins used a spacer in one leg to increase progression of their coil RXF36 m.2, I'm not sure if the current models do, but usage of a spacer for that purposes dates back a while with them.

1
29
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AT
5/27/2025 11:09am
iceman2058 wrote:
We had a request for clarification pop up on the post, here's the answer from Öhlins with some more details around the changes being discussed in...

We had a request for clarification pop up on the post, here's the answer from Öhlins with some more details around the changes being discussed in the press release above: 

The new surface treatment has reduced friction, and the compression damping base tune has been backed off a little. As a result, the fork feels softer. To compensate, the spring curve has been made a little bit more progressive, through the addition of spacers in the ramp-up chamber (yes, it's still the same, 3-chambner design). The "booster" they mention is some kind of insert or spacer that reduces the volume in the lower leg on the damper side, meaning they are using the lowers as part of the total spring system as well. Additionally, in the RXF38 m.3 they have removed both spacers from the negative spring (they are both included in the box), while the DH38 m.2 still has one spacer installed from factory in the negative spring.

thanks for the quick turnaround Smile


Any idea if these upgrades can be done with a damper service? I assume the compression tune and negative spacer would be easy. 

1
owl-x
Posts
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Location
Shell Beach, CA US
5/27/2025 11:17am

edit because of time zones: June 5th in Japan = June 4th in USA

Shimano just publicly announced that they're opening the kimono on Jun 5th.

 

Please never use that term again thx

17
17
sprungmass
Posts
236
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3/1/2023
Location
Calgary, AB CA
5/27/2025 11:40am
iceman2058 wrote:
iceman2058 wrote:
We had a request for clarification pop up on the post, here's the answer from Öhlins with some more details around the changes being discussed in...

We had a request for clarification pop up on the post, here's the answer from Öhlins with some more details around the changes being discussed in the press release above: 

The new surface treatment has reduced friction, and the compression damping base tune has been backed off a little. As a result, the fork feels softer. To compensate, the spring curve has been made a little bit more progressive, through the addition of spacers in the ramp-up chamber (yes, it's still the same, 3-chambner design). The "booster" they mention is some kind of insert or spacer that reduces the volume in the lower leg on the damper side, meaning they are using the lowers as part of the total spring system as well. Additionally, in the RXF38 m.3 they have removed both spacers from the negative spring (they are both included in the box), while the DH38 m.2 still has one spacer installed from factory in the negative spring.

Kudos to Ohlins for simple no nonsense evolution of an already great suspension based on rider feedback. Tried and true TTX18 damper that just works and is easy to service. This is refreshing in a sea of flashy marketing crap we have been bombarded with all season. We don't need your butter cups and 17% stiffer generatively designed arches.

8
2
earleb
Posts
351
Joined
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Location
North Vancouver, BC CA
5/27/2025 11:46am

So they made it rely more on the air spring and less on the damper? 

Less of what Ohlins has been and more like RS/Fox? 

Thankfully nothing a tune won't fix. I love my RFX36 and TTX22M.2 coil. 

3
5/27/2025 11:48am
29 wrote:
thanks for the quick turnaround :)Any idea if these upgrades can be done with a damper service? I assume the compression tune and negative spacer would...

thanks for the quick turnaround Smile


Any idea if these upgrades can be done with a damper service? I assume the compression tune and negative spacer would be easy. 

It’s all backwards compatible, so I assume it could be done during a full service.

2
ardor
Posts
99
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Location
CA
5/27/2025 12:29pm Edited Date/Time 5/27/2025 12:29pm
Shinook wrote:
IIRC Ohlins used a spacer in one leg to increase progression of their coil RXF36 m.2, I'm not sure if the current models do, but usage...

IIRC Ohlins used a spacer in one leg to increase progression of their coil RXF36 m.2, I'm not sure if the current models do, but usage of a spacer for that purposes dates back a while with them.

Correct. I believe it's in the spring side, though. I'll have the lowers off mine this week and can confirm, if anyone cares. 

3
5/27/2025 12:29pm
image 337.png?VersionId=ToWpG0E8P2jqWiz1yfs BUo QEkFr

Found on the other website

11
gavisco
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Basingstoke GB
5/27/2025 1:19pm

From the other site.. could this be the new hope calliper? Looks to have a different bleed port.

6cf7efe9-ff26-4dcc-8054-2ea379cbd235

4
Johnboy
Posts
118
Joined
7/31/2018
Location
AU
5/27/2025 1:32pm
Evil96 wrote:

Source?

Myself:- I have a litre bottle of the current shimano fluid and a small bottle of royal blood, they're notably different viscousities when you compare them...

Myself:- I have a litre bottle of the current shimano fluid and a small bottle of royal blood, they're notably different viscousities when you compare them, but neither are as thin as DOT. If the new shimano fluid is even close to DOT, they're probably on to a winner.

No need to go by feel (though you are correct).  As per their respective SDS's. 

Shimano Mineral oil

1000025230.png?VersionId=Cd04YAQpvKT2SYQa7j9L0cZiO3Xo

 

Royal blood

1000025232
5
juliusha
Posts
15
Joined
3/15/2024
Location
Karlsruhe DE
5/27/2025 1:38pm
hd4rider wrote:
Apologies if I missed this discussion, but I’m very curious to know what smarter people than me think about the Rallon’s low anti-squat. As someone who...

Apologies if I missed this discussion, but I’m very curious to know what smarter people than me think about the Rallon’s low anti-squat. As someone who has been planning to get a new enduro bike and DH bike over the next 12 months, I find this bike very appealing. However, I love big backcountry days on the enduro bike, and I’m worried this bike won’t be particularly good for that without an electronic shock to compensate for the anti-squat. Anyone else having similar thoughts?

On a related note, good on Orbea for not glossing over this compromise and formally addressing it.  

low anti squad usually means low rearward axle path (without any idlers involved)

which i dislike.

but antisquat overall i a bit of a weird metric because it's calculation relies on the exact gearing and position of the center of gravity.
so it is always a bit of a gamble if the antisquat really works for you as intended

5
3
Etney
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12/23/2024
Location
Frankfurt DE
5/27/2025 1:42pm
tarekfahmy wrote:
Found on the other website
image 337.png?VersionId=ToWpG0E8P2jqWiz1yfs BUo QEkFr

Found on the other website

The shock is "live" on the US Ext website: https://extusa.bike/products/ext-vecta

$325 cheaper than the Storia V4. Euro pricing on the V4 is similar, so it will probably be around the same €750-775 in euros as well.

92d3adf882fd1a2b5b5e3d55cf7e9bbe
15
Etney
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Location
Frankfurt DE
5/27/2025 1:52pm
gavisco wrote:
From the other site.. could this be the new hope calliper? Looks to have a different bleed port.

From the other site.. could this be the new hope calliper? Looks to have a different bleed port.

6cf7efe9-ff26-4dcc-8054-2ea379cbd235

Good eye - IIRC that bleed port looks to be the same as on the lever someone posted here a few weeks ago. So we'll probably see a new bleed kit from them with two syringes for push/pull bleeds. 

1
dolface
Posts
1656
Joined
10/26/2015
Location
CA US
5/27/2025 2:30pm
gavisco wrote:
From the other site.. could this be the new hope calliper? Looks to have a different bleed port.

From the other site.. could this be the new hope calliper? Looks to have a different bleed port.

6cf7efe9-ff26-4dcc-8054-2ea379cbd235

Etney wrote:
Good eye - IIRC that bleed port looks to be the same as on the lever someone posted here a few weeks ago. So we'll probably...

Good eye - IIRC that bleed port looks to be the same as on the lever someone posted here a few weeks ago. So we'll probably see a new bleed kit from them with two syringes for push/pull bleeds. 

It's also the same as the one on their gravel caliper

Hope RX4+ SRAM Flat Mount Rear Road Caliper 0mm Rise

2
Evil96
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Location
Portogruaro, VE IT
5/27/2025 2:38pm
gavisco wrote:
From the other site.. could this be the new hope calliper? Looks to have a different bleed port.

From the other site.. could this be the new hope calliper? Looks to have a different bleed port.

6cf7efe9-ff26-4dcc-8054-2ea379cbd235

Guys nothing new here, it’s a Mineral oil caliper, same as a E4, it’s been around for ages, it’s just the PM version of what dolface just posted above me 

 

1
3
august_mtb
Posts
8
Joined
10/27/2024
Location
afton, VA US
5/27/2025 5:03pm

Just tried a GX shifter on a 90 group set. Works awesome only downside is that when you try the multi shift it gets hung up on the 52th. But indexing is perfect. So you could run an X01 shifter with 90 for a crisper feel. It would work flawlessly with an e-bike X01 as it is limited to two shifts at a time. 

9
owl-x
Posts
846
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3/23/2016
Location
Shell Beach, CA US
5/27/2025 6:25pm

Just to be clear: my request for Dr Digit to refrain from using the kimono line is solely because it makes me think of Steven Segall slowly opening his robe at me without breaking his stare. I haven’t researched the term enough to know if I should find it offensive for any other reasons. 
 

Yeah, when I think of “kimono” I think of Steven Seagal. Don’t even know how to spell his name I’m so flustered. 

 

8
owl-x
Posts
846
Joined
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Location
Shell Beach, CA US
5/27/2025 6:28pm

I am offended by Centerlock though. Definitely. 

love a stabby Shimano brake but Centerlock would only be okay if Centerlock were all there is. It’s Betamax, cooler and better but just not worth it

5
3
UfuS78
Posts
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Location
Bielsko PL
5/27/2025 11:12pm
gavisco wrote:
From the other site.. could this be the new hope calliper? Looks to have a different bleed port.

From the other site.. could this be the new hope calliper? Looks to have a different bleed port.

6cf7efe9-ff26-4dcc-8054-2ea379cbd235

I’m not sure why, but I have a feeling that these new brakes we're seeing from Hope, with their new bleed ports, will operate using mineral oil rather than DOT fluid.

The bleed ports are different from those on current Hope models (e.g. new threads, unusual positioning, different diameters), which could suggest a complete shift in the system's design philosophy—specifically toward mineral oil.

3
1
dunnem8
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15
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1/9/2024
Location
Dublin IE
5/28/2025 12:11am

edit because of time zones: June 5th in Japan = June 4th in USA

Shimano just publicly announced that they're opening the kimono on Jun 5th.

 

I know everyone is expecting an xtr di2 or whatever the electronic shifting will be called, but does the case code not suggest something else? It's set to 333 (after googling) is their first ever freewheel, the first Shimano product. 

Are they just using this to build up some new products or is there something else going on?

2
Evil96
Posts
802
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Location
Portogruaro, VE IT
5/28/2025 12:31am
gavisco wrote:
From the other site.. could this be the new hope calliper? Looks to have a different bleed port.

From the other site.. could this be the new hope calliper? Looks to have a different bleed port.

6cf7efe9-ff26-4dcc-8054-2ea379cbd235

UfuS78 wrote:
I’m not sure why, but I have a feeling that these new brakes we're seeing from Hope, with their new bleed ports, will operate using mineral...

I’m not sure why, but I have a feeling that these new brakes we're seeing from Hope, with their new bleed ports, will operate using mineral oil rather than DOT fluid.

The bleed ports are different from those on current Hope models (e.g. new threads, unusual positioning, different diameters), which could suggest a complete shift in the system's design philosophy—specifically toward mineral oil.

They’re not different, see last post on “nerding on brakes”

No clue how to respond to this message in there tagging it

1
1
Digit Bikes
Posts
180
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Location
Irvine, CA US
5/28/2025 12:37am

edit because of time zones: June 5th in Japan = June 4th in USA

Shimano just publicly announced that they're opening the kimono on Jun 5th.

 

dunnem8 wrote:
I know everyone is expecting an xtr di2 or whatever the electronic shifting will be called, but does the case code not suggest something else? It's...

I know everyone is expecting an xtr di2 or whatever the electronic shifting will be called, but does the case code not suggest something else? It's set to 333 (after googling) is their first ever freewheel, the first Shimano product. 

Are they just using this to build up some new products or is there something else going on?

Di1 single speed of course!

11
5/28/2025 4:30am
Evil96 wrote:
Guys nothing new here, it’s a Mineral oil caliper, same as a E4, it’s been around for ages, it’s just the PM version of what dolface...

Guys nothing new here, it’s a Mineral oil caliper, same as a E4, it’s been around for ages, it’s just the PM version of what dolface just posted above me 

 

It's not quite an E4 I think it might be 14mm pistons, but don't quote me. But NicoZesty is right, they do a caliper that's compatible with GRX or other mineral oil levers, there was a bike of the day posted a while back that was a custom Cnc'd frame, and that had a hopemano brake set on it.

1
dunnem8
Posts
15
Joined
1/9/2024
Location
Dublin IE
5/28/2025 5:47am

edit because of time zones: June 5th in Japan = June 4th in USA

Shimano just publicly announced that they're opening the kimono on Jun 5th.

 

dunnem8 wrote:
I know everyone is expecting an xtr di2 or whatever the electronic shifting will be called, but does the case code not suggest something else? It's...

I know everyone is expecting an xtr di2 or whatever the electronic shifting will be called, but does the case code not suggest something else? It's set to 333 (after googling) is their first ever freewheel, the first Shimano product. 

Are they just using this to build up some new products or is there something else going on?

Di1 single speed of course!

Worth the hype anyway

2
mickey
Posts
239
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2/19/2010
Location
Roanoke, VA US
5/28/2025 5:58am
dunnem8 wrote:

Worth the hype anyway

“Get off my lawn”

That teaser video is a a ripoff of Shimano’s own teaser campaign for the xtr m950 launch back in ‘97.  

2
dolface
Posts
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10/26/2015
Location
CA US
5/28/2025 6:33am
Evil96 wrote:
Guys nothing new here, it’s a Mineral oil caliper, same as a E4, it’s been around for ages, it’s just the PM version of what dolface...

Guys nothing new here, it’s a Mineral oil caliper, same as a E4, it’s been around for ages, it’s just the PM version of what dolface just posted above me 

 

It's not quite an E4 I think it might be 14mm pistons, but don't quote me. But NicoZesty is right, they do a caliper that's compatible...

It's not quite an E4 I think it might be 14mm pistons, but don't quote me. But NicoZesty is right, they do a caliper that's compatible with GRX or other mineral oil levers, there was a bike of the day posted a while back that was a custom Cnc'd frame, and that had a hopemano brake set on it.

Shimano/Hope (mineral oil) brakes are fairly common in the gravel world, so Hope definitely have experience w/ mineral oil

https://www.hopetech.com/products/brakes/gravel-cx/rx4-caliper/

1
5/28/2025 11:00am

why has shimano made their XTR and XT caliper so different?
i was really looking forward to XT's with a similar design to the XTR

interesting to see theyve moved to a LV oil to cure their other issues.

3
Kusa
Posts
274
Joined
6/25/2010
Location
CH
5/28/2025 11:10am Edited Date/Time 5/28/2025 11:10am
why has shimano made their XTR and XT caliper so different?i was really looking forward to XT's with a similar design to the XTRinteresting to see...

why has shimano made their XTR and XT caliper so different?
i was really looking forward to XT's with a similar design to the XTR

interesting to see theyve moved to a LV oil to cure their other issues.

XTR is going to replace Saint brakes in my opinion and they really wanted to position it as more different product probably with actual extra features which is problem of the current line up where its just a badge, name and maybe some slight updates but nothing setting them truly apart besides the price.

6
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