MTB Tech Rumors and Innovation

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Buttons
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Buttons 3/21/2022 9:00pm
3/21/2022 9:00pm
Primoz wrote:
Formula has foam spacers, so they compress with rising air pressure in the chamber and give some more linearity - with added plastic volume spacers, you...
Formula has foam spacers, so they compress with rising air pressure in the chamber and give some more linearity - with added plastic volume spacers, you ramp up the spring very quickly, this takes some of that ramp out.

As for the decoupler, they have a floating-ish piston, which means they lessen the piston bind when the fork flexes.

What the buttercups do is different, they take away the chatter that isn't covered by the spring in the fork (due to stiction and the like). So the same as a rubber top mount in a car (with flexible rubber bushings in the links taking loads in different directions). What bikes essentially are are race cars, where everything is solidly mounted, more or less. With race cars this is done for performance, as it gives precision (less unwanted flex and movement of the wheel) at the cost of comfort - that's why this is not done for road cars.

As for the wheelbased article, didn't read through it, but the pictures only cover the buttercups, yes. And the one that has a pin going through is done that way to prevent a 'dead' rebound adjuster - the rod needs to be rotationally fixed to the chassis in order for the dial to turn the screw inside it. Otherwise everything could rotate and the clicking of the dial wouldn't actually do anything with the rebound setting.

As for the IFP aspect, true, the charger already uses it. But it's spring backed, not pressure backed, as it is in shocks. There is no spring in the patent application and I think items 347 and 348 are just the compression rod/assembly and the bladder.

What an IFP would add is some more stiction in the system, but easier servicing, as you'd only need to replace and O-ring instead of the bladder. But Charger dampers are technically unserviceable anyway (to the detriment of angrybikemechanic: https://www.instagram.com/p/CaXw90esxmU/ ).
Fox's (Marzocchi's) solution with a cut in the rod to bleed away excess oil is also a wonderful solution when it comes to oil ingestion, but it does require you to run the same damper and lower lubricating fluid, which might not be the best, depending on the design of both the bushings/chassis and the damper.
Yeah thats a good point about the elastomers. I definitely like the idea of more comfort but I don't think the Buttercups are the best solution.

I do like the idea of easier servicing though and I haven't been impressed with the current charger damper. I'm no engineer and I don't quite understand what makes a good damper but I feel like both fox and rockshox have fallen a little short of the mark.

And as for marzocchi the old ones seem to have it somewhat right. Personally I like the idea of an open bath damper a lot more than the cartridge systems we have now. Running more oil in my option is not a drawback. It seems to keep everything running smooth at the expense of some weight and old leakage. It also works for Moto so I think it should work on a bike too.
2
baronKanon 3/21/2022 11:03pm
3/21/2022 11:03pm
Buttons wrote:
Yeah thats a good point about the elastomers. I definitely like the idea of more comfort but I don't think the Buttercups are the best solution...
Yeah thats a good point about the elastomers. I definitely like the idea of more comfort but I don't think the Buttercups are the best solution.

I do like the idea of easier servicing though and I haven't been impressed with the current charger damper. I'm no engineer and I don't quite understand what makes a good damper but I feel like both fox and rockshox have fallen a little short of the mark.

And as for marzocchi the old ones seem to have it somewhat right. Personally I like the idea of an open bath damper a lot more than the cartridge systems we have now. Running more oil in my option is not a drawback. It seems to keep everything running smooth at the expense of some weight and old leakage. It also works for Moto so I think it should work on a bike too.
Replacing the bladder is a good thing, as they have not been the most reliable when it comes to holding oil, and they have actually not been available as replacement if they break.

Regarding open bath, you have the risk of foaming of the oil as it will bounce a lot inside the stanction. You can somewhat negate that using a lot of oil and putting the compression damper at the bottom, but that is adding a lot of weight, which is undamped weight.
1
mtbwehttam 3/22/2022 12:28am
3/22/2022 12:28am
Few things...

Conti tyre release date: April 8th - Very little stock being spread world wide to begin with, major stock rolling in October/November

New trek E-Bike: Lightweight trailbike spec, basically a Specialized Levo SL. Rolling out in a few months, no solid date as of now

New Pinion "AXS": Currently in development with real world testing expected to take place from July. Benefits from this is that you'll be able to change gears without having to stop pedalling.

Zerode DH Bike: Zerode are currently making a new DH bike, expecting it to come out in time for next season.

9
hitar_potar 3/22/2022 12:47am
3/22/2022 12:47am
Where did you get the info on the new Zerode?
ORTOGONAL555 3/22/2022 2:28am
3/22/2022 2:28am
Dean Lucas is currently riding an alu frame, not sure if it is just because of shortages or if it is slightly different. Also, on the latest Making up the Number podcast Matt Walker confirmed they are on a revised front triangle with some minor geometry changes.
1
sspomer
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Boise, ID US
sspomer 3/22/2022 6:42am
3/22/2022 6:42am
i met w/ gwin to talk about the new bike at windrock
https://youtu.be/y_G2XgrxC5w

they're not giving up any deets about geo or kinematics just yet.
27
grambo
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CA
grambo 3/22/2022 3:53pm
3/22/2022 3:53pm
Pivot released an updated Switchblade but doesn't seem to be any press? I guess just minor changes with seat tube and colours? not sure if geo changed?

https://global.pivotcycles.com/products/switchblade
1
C-LION
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CH
C-LION 3/22/2022 4:21pm
3/22/2022 4:21pm
sspomer wrote:
i met w/ gwin to talk about the new bike at windrock
https://youtu.be/y_G2XgrxC5w

they're not giving up any deets about geo or kinematics just yet.
Very cool stuff! Tks vm 🙏
2
Velocipedestrian 3/22/2022 9:03pm
3/22/2022 9:03pm Edited Date/Time 3/22/2022 9:11pm
sspomer wrote:
i met w/ gwin to talk about the new bike at windrock
https://youtu.be/y_G2XgrxC5w

they're not giving up any deets about geo or kinematics just yet.
That's what an Intense should be. A raw prototype then polished and a couple of stickers added for the market version.
7
hmcleay
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AU
hmcleay 3/23/2022 1:00am
3/23/2022 1:00am
sspomer wrote:
i met w/ gwin to talk about the new bike at windrock
https://youtu.be/y_G2XgrxC5w

they're not giving up any deets about geo or kinematics just yet.
Great interview @sspomer!
Can't wait to see what Aaron can do on it!
4
peecee
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Brisbane AU
peecee 3/23/2022 7:19pm
3/23/2022 7:19pm
I hope its a white bike but I also want to hear more about this ohlins shock its surly time


1
Downhill2407 3/23/2022 11:36pm
3/23/2022 11:36pm
peecee wrote:
I hope its a white bike but I also want to hear more about this ohlins shock its surly time [img]https://p.vitalmtb.com/photos/forums/2022/03/23/12233/s1200_s1600_Loic_s_Specialized_Demo_more_tomorrow.jpg[/img]
I hope its a white bike but I also want to hear more about this ohlins shock its surly time


A friend send me a picture from that Shock without the cover but i ganz Upload it here. And you didnt see that much were the compression adjusters was are now Something mechanical covered in ductape. But you cant really see what exactlys going on there
metadave
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metadave 3/24/2022 7:04am
3/24/2022 7:04am
Juuuust in case something pops up this weekend at the race.....

4
bermslapper69 3/24/2022 7:25am
3/24/2022 7:25am
Downhill2407 wrote:
[img]https://p.vitalmtb.com/photos/forums/2022/03/23/12234/s1200_4DB4A53F_6265_4B8F_91E6_546EFFDF8B4D.jpg[/img] New HT X3 Pedals https://thebikehub.com/products/ht-components-x3-dh-race-pedals-body-aluminum-spindle-cr-mo-9-16-black-pair-h451065-01 Gwin also riding them. Looks like the plate to help Clip in is the biggest difference.

New HT X3 Pedals
https://thebikehub.com/products/ht-components-x3-dh-race-pedals-body-al…
Gwin also riding them. Looks like the plate to help Clip in is the biggest difference.
Maybe the bearings will last longer than 3 hours on these ones too
3
Edthorne
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Edthorne 3/24/2022 9:31am
3/24/2022 9:31am
ORTOGONAL555 wrote:
The updated Cube dh bike is out
https://www.instagram.com/p/CbckXBEgXlm/?utm_medium=copy_link
melonhead1145 wrote:
That cable routing....
I guess anything that uses an idler would be a high pivot, but that's not very high at all. It seems more in line with the GT Fury. Still a very cool bike, but I feel like we should call these bikes mid pivot or something like that.
nskerb
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Kelso, WA US
nskerb 3/24/2022 10:43am
3/24/2022 10:43am
sspomer wrote:
moar pit bitz https://www.vitalmtb.com/photos/features/PIT-BITS-2-Lourdes-World-Cup-Downhill,13624/PIT-BITS-2-Lourdes-World-Cup-Downhill,149873/sspomer,2 [img]https://p.vitalmtb.com/photos/forums/2022/03/24/12245/s1200_20220323_UCI_DH_WorldCup_Lourdes_H8A2697.jpg[/img]
moar pit bitz
https://www.vitalmtb.com/photos/features/PIT-BITS-2-Lourdes-World-Cup-D…


Sweet Jesus that is a good looking bike.
2
bermslapper69 3/24/2022 2:11pm
3/24/2022 2:11pm
Buttons wrote:
On Greg's bike he's got "test pilot" tires, but the tread looks like it could be a shorty. Is maxxis working on a new casing?

https://p.vitalmtb.com/photos/users/2/photos/149857/s1600_20220323_UCI_DH_WorldCup_Lourdes_H8A2486.jpg
There have been test pilot tires with existing treads for a while now, the ones I’ve seen in person have another layer of pinch flat/sidewall protection compared to DH casing and was told they’re crazy heavy (in the realm of 1500g or more for a 29 DHR2)
2
AndehM
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El Granada, CA US
AndehM 3/24/2022 2:18pm
3/24/2022 2:18pm
Buttons wrote:
On Greg's bike he's got "test pilot" tires, but the tread looks like it could be a shorty. Is maxxis working on a new casing?

https://p.vitalmtb.com/photos/users/2/photos/149857/s1600_20220323_UCI_DH_WorldCup_Lourdes_H8A2486.jpg
bermslapper69 wrote:
There have been test pilot tires with existing treads for a while now, the ones I’ve seen in person have another layer of pinch flat/sidewall protection...
There have been test pilot tires with existing treads for a while now, the ones I’ve seen in person have another layer of pinch flat/sidewall protection compared to DH casing and was told they’re crazy heavy (in the realm of 1500g or more for a 29 DHR2)
So, still lighter than a Michelin? Grinning
2
sspomer
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Boise, ID US
sspomer 3/24/2022 2:23pm
3/24/2022 2:23pm
vali's session from our pit bits vid - idler different (not enclosed like loris/reece etc bikes). is this what was going around a week or so ago? new slash rear end or something?

6
Primoz
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SI
Primoz 3/24/2022 2:25pm
3/24/2022 2:25pm
Buttons wrote:
On Greg's bike he's got "test pilot" tires, but the tread looks like it could be a shorty. Is maxxis working on a new casing?

https://p.vitalmtb.com/photos/users/2/photos/149857/s1600_20220323_UCI_DH_WorldCup_Lourdes_H8A2486.jpg
bermslapper69 wrote:
There have been test pilot tires with existing treads for a while now, the ones I’ve seen in person have another layer of pinch flat/sidewall protection...
There have been test pilot tires with existing treads for a while now, the ones I’ve seen in person have another layer of pinch flat/sidewall protection compared to DH casing and was told they’re crazy heavy (in the realm of 1500g or more for a 29 DHR2)
ZK casing?
1
Averyone
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San Rafael, CA US
Averyone 3/24/2022 5:51pm
3/24/2022 5:51pm Edited Date/Time 3/24/2022 5:54pm

Anyone know what the bike is in the foreground? Seems to be hiding in a few other shots as well. New Megatower?
1
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