MTB Tech Rumors and Innovation

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Jon_Angieri
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Jon_Angieri 7/17/2022 5:01am
7/17/2022 5:01am
Looks like the Aria has HBC as well. Would love to try one of those
TheShortestCharles 7/17/2022 9:10am
7/17/2022 9:10am
All Ibis AF models are 25% off...something new coming soon? They took the Mojo HD5 off their site a while ago as well.
Brian_Peterson 7/17/2022 9:46am
7/17/2022 9:46am
bulletbass man wrote:
Finns bike the chain stays are super laterally flexy but still tracks a ton. His bike is visually doing something pretty different out there.
Perhaps an experiment with lateral flex to help tracking in the turns like we've seen in moto GP and motocross.. The suspension doesn't react as well when leaned over in a turn, so they will use chassis flex to help maintain grip...
Primoz
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Primoz 7/17/2022 9:51am
7/17/2022 9:51am
Where was this flex observed?
Trocko
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Trocko 7/17/2022 10:00am
7/17/2022 10:00am
Wonder why no bike manufactures haven't tried to Collab with an internal geared hub manufacture to run as a gearbox. Could create a bb Mount to bolt up like other gear boxes and make a spindle instead of an axle for cranks. this Kindernay already has mounting bolts to be possible. Or would there just be no benefit over current available gearboxes?



bulletbass man 7/17/2022 10:02am
7/17/2022 10:02am
Primoz wrote:
Where was this flex observed?
Watch his wheels in the berms and very rough sections in the last two races.
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baronKanon 7/17/2022 10:23am
7/17/2022 10:23am
Trocko wrote:
Wonder why no bike manufactures haven't tried to Collab with an internal geared hub manufacture to run as a gearbox. Could create a bb Mount to...
Wonder why no bike manufactures haven't tried to Collab with an internal geared hub manufacture to run as a gearbox. Could create a bb Mount to bolt up like other gear boxes and make a spindle instead of an axle for cranks. this Kindernay already has mounting bolts to be possible. Or would there just be no benefit over current available gearboxes?



Have you seen the over engineered shifting mechanism? And the cage is just redundant. I know the internals are bonkers, as the engineer designing it has worked designing gear boxes for high end cars previously. They can handle a lot of torque, though.
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Primoz
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Primoz 7/17/2022 10:35am
7/17/2022 10:35am
@bulletbass man this is my point, where can this be seen? Tongue

re kindernay, the cage is there to lace the wheel to it, so you can move the gearbox between multiple wheelsets.

As to why it's not used as a gearbox, google Nicolai G-boxx. Version 1 used a Rohloff inside a case. The issue was that the output was taken off the left side of the hub and thus they had to use a special hub and mount for the rear wheel. And mount the rear brake on the right side, which caused quite a bit of design challenges with designed-for-left-side calipers. And no, you can't just mount it flipped around, mountain bike calipers have to be pressed onto the adapter when used for braking due to the strength of the components/design.

Option 2 for a hub used as a gearbox, Zerode DH bike, which used an Alfine hub, modified enough to have the drive taken off the hub on the right side.

The main issue, besides the side where the drive is taken off? Off the shelf hub gearboxes are much heavier than they would need to be mounted inside the frame as they need to carry the loads of the rear wheel. And they are all designed using planetary gears as they are coaxial (input and output). With a frame mounted gearbox that is not needed (Effigear) or, if designed that way (Pinion), you don't need to contain everything around that axle (case in point, Pinion has a two-shaft layout). Without that limitation you can use standard meshed gear pairs instead of a planetary drivetrain which raises efficiency.

Given gearboxes are not known for their efficiency over a cassette and chain drivetrain, adding additional losses is more of a negative than a positive Smile
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slimshady
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slimshady 7/17/2022 10:45am
7/17/2022 10:45am Edited Date/Time 7/17/2022 10:47am
Trocko wrote:
Wonder why no bike manufactures haven't tried to Collab with an internal geared hub manufacture to run as a gearbox. Could create a bb Mount to...
Wonder why no bike manufactures haven't tried to Collab with an internal geared hub manufacture to run as a gearbox. Could create a bb Mount to bolt up like other gear boxes and make a spindle instead of an axle for cranks. this Kindernay already has mounting bolts to be possible. Or would there just be no benefit over current available gearboxes?



GT used a Nexus hub on their IT-1 bike, and G1/G2 Zerodes also did. The internally geared hub as a gearbox idea has about two decades already.

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Trocko
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Trocko 7/17/2022 10:54am
7/17/2022 10:54am
Trocko wrote:
Wonder why no bike manufactures haven't tried to Collab with an internal geared hub manufacture to run as a gearbox. Could create a bb Mount to...
Wonder why no bike manufactures haven't tried to Collab with an internal geared hub manufacture to run as a gearbox. Could create a bb Mount to bolt up like other gear boxes and make a spindle instead of an axle for cranks. this Kindernay already has mounting bolts to be possible. Or would there just be no benefit over current available gearboxes?



slimshady wrote:
GT used a Nexus hub on their IT-1 bike, and G1/G2 Zerodes also did. The internally geared hub as a gearbox idea has about two decades...
GT used a Nexus hub on their IT-1 bike, and G1/G2 Zerodes also did. The internally geared hub as a gearbox idea has about two decades already.

i had a zerode G1 so very similar with the system. It was more of them making a custom shell strong enough to be mounted as the BB instead of rerouting the chain to the hub like the G1. Anything is possible but just a random thought and curiosity. Thanks for the detailed explanation Primoz!
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bulletbass man 7/17/2022 1:34pm
7/17/2022 1:34pm
Primoz wrote:
@bulletbass man this is my point, where can this be seen? :P re kindernay, the cage is there to lace the wheel to it, so you...
@bulletbass man this is my point, where can this be seen? Tongue

re kindernay, the cage is there to lace the wheel to it, so you can move the gearbox between multiple wheelsets.

As to why it's not used as a gearbox, google Nicolai G-boxx. Version 1 used a Rohloff inside a case. The issue was that the output was taken off the left side of the hub and thus they had to use a special hub and mount for the rear wheel. And mount the rear brake on the right side, which caused quite a bit of design challenges with designed-for-left-side calipers. And no, you can't just mount it flipped around, mountain bike calipers have to be pressed onto the adapter when used for braking due to the strength of the components/design.

Option 2 for a hub used as a gearbox, Zerode DH bike, which used an Alfine hub, modified enough to have the drive taken off the hub on the right side.

The main issue, besides the side where the drive is taken off? Off the shelf hub gearboxes are much heavier than they would need to be mounted inside the frame as they need to carry the loads of the rear wheel. And they are all designed using planetary gears as they are coaxial (input and output). With a frame mounted gearbox that is not needed (Effigear) or, if designed that way (Pinion), you don't need to contain everything around that axle (case in point, Pinion has a two-shaft layout). Without that limitation you can use standard meshed gear pairs instead of a planetary drivetrain which raises efficiency.

Given gearboxes are not known for their efficiency over a cassette and chain drivetrain, adding additional losses is more of a negative than a positive Smile
In the lg berms up top and when he almost ate it were the most obvious moments to memory
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Big Bird
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Big Bird 7/18/2022 9:18am
7/18/2022 9:18am
I rode a Brooklyn Supertrucker with a Shimano internal hub placed above the BB with a jack shaft and second chain. It lasted about a day at Big Bear then became a single speed.
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bermslapper69 7/18/2022 9:40am
7/18/2022 9:40am
Wyn Masters out riding the new Trek fuel EX-E


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baronKanon 7/18/2022 9:50am
7/18/2022 9:50am
bermslapper69 wrote:
Wyn Masters out riding the new Trek fuel EX-E [img]https://p.vitalmtb.com/photos/forums/2022/07/18/12741/s1200_614124A2_70B0_49E9_8B6E_D8AF1EC0AFA8.jpg[/img] [img]https://p.vitalmtb.com/photos/forums/2022/07/18/12740/s1200_8C8EB1CA_60B3_495F_8E37_6FDDA42A5451.jpg[/img]
Wyn Masters out riding the new Trek fuel EX-E


That's a GT
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bermslapper69 7/18/2022 9:56am
7/18/2022 9:56am
bermslapper69 wrote:
Wyn Masters out riding the new Trek fuel EX-E [img]https://p.vitalmtb.com/photos/forums/2022/07/18/12741/s1200_614124A2_70B0_49E9_8B6E_D8AF1EC0AFA8.jpg[/img] [img]https://p.vitalmtb.com/photos/forums/2022/07/18/12740/s1200_8C8EB1CA_60B3_495F_8E37_6FDDA42A5451.jpg[/img]
Wyn Masters out riding the new Trek fuel EX-E


baronKanon wrote:
That's a GT
No shit lol
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Poleczechy 7/18/2022 10:04am
7/18/2022 10:04am
New Fox rear shox about to drop?
TheShortestCharles 7/18/2022 10:23am
7/18/2022 10:23am
Poleczechy wrote:
New Fox rear shox about to drop? [img]https://p.vitalmtb.com/photos/forums/2022/07/18/12742/s1200_IMG_2142.jpg[/img]
New Fox rear shox about to drop?
It's a new electronically controlled shock with the battery mounted to the shock rather than the frame; go back a page or two in the thread
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bermslapper69 7/18/2022 10:26am
7/18/2022 10:26am
bermslapper69 wrote:
Wyn Masters out riding the new Trek fuel EX-E [img]https://p.vitalmtb.com/photos/forums/2022/07/18/12741/s1200_614124A2_70B0_49E9_8B6E_D8AF1EC0AFA8.jpg[/img] [img]https://p.vitalmtb.com/photos/forums/2022/07/18/12740/s1200_8C8EB1CA_60B3_495F_8E37_6FDDA42A5451.jpg[/img]
Wyn Masters out riding the new Trek fuel EX-E


To those who don’t have the capacity to understand sarcasm: this appears to be the new sensor mentioned in previous pages. New frame style in line with the force but no idler
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Jon_Angieri
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Jon_Angieri 7/18/2022 10:38am
7/18/2022 10:38am
What’s everyone’s thoughts on those brake boosters by Outbraker?? Just noticed those on Alex Marin’s bike.
CascadeComponents 7/18/2022 11:09am
7/18/2022 11:09am
Jon_Angieri wrote:
What’s everyone’s thoughts on those brake boosters by Outbraker?? Just noticed those on Alex Marin’s bike.
It's effectively the exact same thing as over-filling your brakes when you bleed them.
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Brian_Peterson 7/18/2022 11:45am
7/18/2022 11:45am
bermslapper69 wrote:
Wyn Masters out riding the new Trek fuel EX-E [img]https://p.vitalmtb.com/photos/forums/2022/07/18/12741/s1200_614124A2_70B0_49E9_8B6E_D8AF1EC0AFA8.jpg[/img] [img]https://p.vitalmtb.com/photos/forums/2022/07/18/12740/s1200_8C8EB1CA_60B3_495F_8E37_6FDDA42A5451.jpg[/img]
Wyn Masters out riding the new Trek fuel EX-E


baronKanon wrote:
That's a GT
Wooosh....
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Primoz
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Primoz 7/18/2022 12:13pm
7/18/2022 12:13pm
Jon_Angieri wrote:
What’s everyone’s thoughts on those brake boosters by Outbraker?? Just noticed those on Alex Marin’s bike.
CascadeComponents wrote:
It's effectively the exact same thing as over-filling your brakes when you bleed them.
Noeserd
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Noeserd 7/18/2022 1:29pm
7/18/2022 1:29pm Edited Date/Time 7/18/2022 1:33pm
So Schwalbe announced a new tire recycling technique by Pyrum Innovations , hope it works

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Mr.Nally
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Mr.Nally 7/18/2022 10:15pm
7/18/2022 10:15pm
New specialized DH helmet?
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JerseyMojo 7/19/2022 1:18am
7/19/2022 1:18am
Having just bought a new DH lid, I did a load of research and I don't recognise it.. Would make sense as well having a DH lid alongside the Gambit. Would also explain how Loic was able to keep using his Fox deal for hlemets..
nicompr
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nicompr 7/19/2022 10:05am
7/19/2022 10:05am
On Youn Deniaud's bike. What's UP with thé Shimano caliper ?
Jrp
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Jrp 7/19/2022 11:44am
7/19/2022 11:44am
nicompr wrote:
On Youn Deniaud's bike. What's UP with thé Shimano caliper ?[img]https://p.vitalmtb.com/photos/forums/2022/07/19/12746/s1200_Screenshot_20220719_161649.jpg[/img]
On Youn Deniaud's bike. What's UP with thé Shimano caliper ?
It’s a sensor for the new electric shock fox are making that no one asked for haha
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Whattheheel
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Whattheheel 7/19/2022 12:02pm
7/19/2022 12:02pm
In a complaint filed in the Central District of California courts on July 13, 2022, Fox Factory, Inc., is seeking damages from SRAM, LLC, for patent infringement relating to SRAM’s use of bleed ports on their latest Rockshox suspension forks.

In the filing, Fox refers to its Patent # 9,739,331 for a “Method and Apparatus for an Adjustable Damper” that contains a manually activated pressure equalization valve. We’ve seen these on their forks for years, and they’ve proven popular for keeping the forks working their best as temperature and elevation changes throughout the ride.

https://bikerumor.com/fox-sues-sram-rockshox-over-bleed-valves/
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baronKanon 7/19/2022 12:39pm
7/19/2022 12:39pm
Pissing contest to protect their "IP". It may be rightfully theirs, but it is a common use in the suspension industry throughout. Very popular on MX forks.
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