The two accelerometer idea, the post connecting them would influence the measurement much more than just using a gyroscope (a MEMS device) directly on the frame...
The two accelerometer idea, the post connecting them would influence the measurement much more than just using a gyroscope (a MEMS device) directly on the frame. And you don't have the issue of measurement synchronisation as well (always a pain when acquiring data off multiple sensors).
But, as you alluded, even a gyro would be influenced by bike lean. And using two gives you the same issue as you have with the accelerometers.
You can easily and precisely measure flex on a fixture. If you use strain gauges all over the frame when doing the measurements, you can also calibrate the strain gauges to certain flex values or to a 3D model. If you have enough of them you can even recreate loadings from the field in your finite element model to see what the external loads are like and use that when developing the next bike.
Two gyros that measures roll, (like yaw pitch roll) one the front triangle and one on the rear near axle, would work as well. The roll...
Two gyros that measures roll, (like yaw pitch roll) one the front triangle and one on the rear near axle, would work as well. The roll of the front triangle would be subtracted from the rear, thus giving torsional flex. The accelerometers would be two on front triangle two on rear arranged vertically, so four total. Either way: sample rate, accuracy, and synchronicity (as you said) would have to be very good to get useful data. Probably not what's going on here, but it's an idea.
Works in theory, but I would not expect any usefull data from the MEMS inertial measurements units in such dynamic and noisy environment.
Don't have experience with MEMS gyros, but if it can be made in millions of units to handle airbags, ABS and ESC in cars, I'm sure it's possible to make a sensor precise enough to handle a mountainbike riding down a hillside.
Don't have experience with MEMS gyros, but if it can be made in millions of units to handle airbags, ABS and ESC in cars, I'm sure...
Don't have experience with MEMS gyros, but if it can be made in millions of units to handle airbags, ABS and ESC in cars, I'm sure it's possible to make a sensor precise enough to handle a mountainbike riding down a hillside.
I doubt its an inerter, its not connect to the lower legs, so only way it could be if its a oil based j-damper (McLarens code...
I doubt its an inerter, its not connect to the lower legs, so only way it could be if its a oil based j-damper (McLarens code for their original oil based inerter) running of the airpsring shaft somehow, way too complicated.
I think it could be there to monitor the airspring pressures for telemetry (explains why its bolted to air spring side.
Inerters aren't needed on a MTB, its what arms and legs are for.
Size and position makes sense. I haven't seen somebody use them before on a MTB, wouldn't the front one need to be on the lower leg though (mounted to the unsprung mass)
Looks like Kilian Bron has the new Meta on Remy Metailler's latest YT vid. New colour way(?) and definitely has headset routing. Either that, or it's still the proto (filmed before Remy got injured).
*Edit* - Or is it darn aggressive riding on a Tempo? Looks like it's got a bit of a kink in the top tube.
Looks like Kilian Bron has the new Meta on Remy Metailler's latest YT vid. New colour way(?) and definitely has headset routing. Either that, or it's...
Looks like Kilian Bron has the new Meta on Remy Metailler's latest YT vid. New colour way(?) and definitely has headset routing. Either that, or it's still the proto (filmed before Remy got injured).
*Edit* - Or is it darn aggressive riding on a Tempo? Looks like it's got a bit of a kink in the top tube.
Looks like Kilian Bron has the new Meta on Remy Metailler's latest YT vid. New colour way(?) and definitely has headset routing. Either that, or it's...
Looks like Kilian Bron has the new Meta on Remy Metailler's latest YT vid. New colour way(?) and definitely has headset routing. Either that, or it's still the proto (filmed before Remy got injured).
*Edit* - Or is it darn aggressive riding on a Tempo? Looks like it's got a bit of a kink in the top tube.
The new lever body seems to match the shape of the new stealth levers. What stood out to me is bleed port plug that matches the one found on the DB8, which uses mineral oil and makes me believe there’s some truth behind the switch to mineral oil.
48% heavier than a Transmission setup using my napkin math. Would you really notice on an ebike though? If you go through a cassette per year...
48% heavier than a Transmission setup using my napkin math. Would you really notice on an ebike though? If you go through a cassette per year with a transmission setup you would potentially be saving quite a few bucks annually with the no maintenance claim on the 3x3.
1) I swapped from a 12 speed AXS to an old school 11 speed and at least in my head I could feel the .5# unsprung weight loss. The suspension felt more supple and quicker to react. It wasn't a money issue nor was the AXS giving me any trouble, but I genuinely prefer the 11 speed's performance.
2) The proper solution for an e-bike is a combo motor/ transmission. The extra drag isn't a big deal cause you have a motor, and the extra weight, at the center of the frame but in exchange for vastly improved drivetrain wear/ tear is a fair trade off on a 42#+ bike. To top it off, once you combine the 2 housing in to one, there might be very little weight gain if any compared to say SRAM Transmission.
"Why not enjoy the exhilarating feeling of braking?" might be one of the funniest statements I've ever read. I think some of the European and Asian brands should just let AI write their product copy.
"Why not enjoy the exhilarating feeling of braking?" might be one of the funniest statements I've ever read. I think some of the European and Asian...
"Why not enjoy the exhilarating feeling of braking?" might be one of the funniest statements I've ever read. I think some of the European and Asian brands should just let AI write their product copy.
Or porn authors "...to fit perfectly in the hand for Cura, Cura 4, and Cura x, without any loss of sensation ..."
"Why not enjoy the exhilarating feeling of braking?" might be one of the funniest statements I've ever read. I think some of the European and Asian...
"Why not enjoy the exhilarating feeling of braking?" might be one of the funniest statements I've ever read. I think some of the European and Asian brands should just let AI write their product copy.
"Why not enjoy the exhilarating feeling of braking?" might be one of the funniest statements I've ever read. I think some of the European and Asian...
"Why not enjoy the exhilarating feeling of braking?" might be one of the funniest statements I've ever read. I think some of the European and Asian brands should just let AI write their product copy.
New Pivot phoenix, Reverting away from the Horizontal to a vertical shock layout - assuming itll look like the rest of pivots bikes like the firebird.
Looks like its a Lugged carbon prototype. - does anyone have any Info on this and who is making these frames? Spesh and pivot both have these now... is athertons making them some lugs?
i believe This was BK doing some Private solo testing in QT before the journey to Rotorua.
New Pivot phoenix, Reverting away from the Horizontal to a vertical shock layout - assuming itll look like the rest of pivots bikes like the firebird...
New Pivot phoenix, Reverting away from the Horizontal to a vertical shock layout - assuming itll look like the rest of pivots bikes like the firebird.
Looks like its a Lugged carbon prototype. - does anyone have any Info on this and who is making these frames? Spesh and pivot both have these now... is athertons making them some lugs?
i believe This was BK doing some Private solo testing in QT before the journey to Rotorua.
Chris Cocalis was on the other site's podcast and said they're making those frames in-house in AZ, iirc he said they could make one in ~3 weeks
Just a floating brake mount. You can see the connecting rod below the chainstay. It's nice to see a quick and dirty prototype in the wild instead of one that someone wasted time making look good just for proof of concept testing.
Saracen as a whole did that, they tuned the anti rise with it. I commented that on Pinkbike and Saracen's designer confirmed my comment.
FWIW, Saracen's was a single pivot (they have a multilink proto out now?) while the cube is a multi link bike, which makes a floating brake less necessary or less useful than on a single pivot. It's likely there for testing purposes.
New Pivot phoenix, Reverting away from the Horizontal to a vertical shock layout - assuming itll look like the rest of pivots bikes like the firebird...
New Pivot phoenix, Reverting away from the Horizontal to a vertical shock layout - assuming itll look like the rest of pivots bikes like the firebird.
Looks like its a Lugged carbon prototype. - does anyone have any Info on this and who is making these frames? Spesh and pivot both have these now... is athertons making them some lugs?
i believe This was BK doing some Private solo testing in QT before the journey to Rotorua.
Works in theory, but I would not expect any usefull data from the MEMS inertial measurements units in such dynamic and noisy environment.
The strain gauges could be way more precise tho
Don't have experience with MEMS gyros, but if it can be made in millions of units to handle airbags, ABS and ESC in cars, I'm sure it's possible to make a sensor precise enough to handle a mountainbike riding down a hillside.
https://www.youtube.com/watch?v=XsjvaYAFN1M
Man I just gotta ask- how do you know something about everything? lol
Thats actually a good idea,
Size and position makes sense. I haven't seen somebody use them before on a MTB, wouldn't the front one need to be on the lower leg though (mounted to the unsprung mass)
Looks like Kilian Bron has the new Meta on Remy Metailler's latest YT vid. New colour way(?) and definitely has headset routing. Either that, or it's still the proto (filmed before Remy got injured).
*Edit* - Or is it darn aggressive riding on a Tempo? Looks like it's got a bit of a kink in the top tube.
https://www.youtube.com/watch?v=CSLPMRx5ET0&t=276s
Enhance:
Ha ha. Your CSI skills are much better than mine.
New SRAM brake levers to go with the new callipers
https://www.youtube.com/watch?v=R47lxfLHm-g
Looks very similar, but the stealth levers have angled hose and the levers installed alongside with the new "Mave" calipers have straight hose.
The new lever body seems to match the shape of the new stealth levers. What stood out to me is bleed port plug that matches the one found on the DB8, which uses mineral oil and makes me believe there’s some truth behind the switch to mineral oil.
pole e-bike goods
pole e-bike bads
It's a brake lever. A goddamned two piece brake lever.
Another product that was supposed to be released pre covid. Better late than never I guess?
1) I swapped from a 12 speed AXS to an old school 11 speed and at least in my head I could feel the .5# unsprung weight loss. The suspension felt more supple and quicker to react. It wasn't a money issue nor was the AXS giving me any trouble, but I genuinely prefer the 11 speed's performance.
2) The proper solution for an e-bike is a combo motor/ transmission. The extra drag isn't a big deal cause you have a motor, and the extra weight, at the center of the frame but in exchange for vastly improved drivetrain wear/ tear is a fair trade off on a 42#+ bike. To top it off, once you combine the 2 housing in to one, there might be very little weight gain if any compared to say SRAM Transmission.
Those are some lame hashtags
Anticipating the Selva XL and get a brake lever. Definitely disappointing.
"Why not enjoy the exhilarating feeling of braking?" might be one of the funniest statements I've ever read. I think some of the European and Asian brands should just let AI write their product copy.
Or porn authors "...to fit perfectly in the hand for Cura, Cura 4, and Cura x, without any loss of sensation ..."
I guess some of it comes down to not having a very good command of english.
It may sounds better in italian
Won't sound like the symphony of a Sram brake on the wet, tho
New Pivot phoenix, Reverting away from the Horizontal to a vertical shock layout - assuming itll look like the rest of pivots bikes like the firebird.
Looks like its a Lugged carbon prototype. - does anyone have any Info on this and who is making these frames? Spesh and pivot both have these now... is athertons making them some lugs?
i believe This was BK doing some Private solo testing in QT before the journey to Rotorua.
Source? BTW on the other website there were some photos of it, they were reposted here a few pages back.
Chris Cocalis was on the other site's podcast and said they're making those frames in-house in AZ, iirc he said they could make one in ~3 weeks
Interesting brake mount...
Grabbed from the recent Gastovlogcubesr&dprojects
Looks like a floating brake arm, you can see it under the left stay. Hasn’t Danny experimented with that before on saracen?
Just a floating brake mount. You can see the connecting rod below the chainstay. It's nice to see a quick and dirty prototype in the wild instead of one that someone wasted time making look good just for proof of concept testing.
Saracen as a whole did that, they tuned the anti rise with it. I commented that on Pinkbike and Saracen's designer confirmed my comment.
FWIW, Saracen's was a single pivot (they have a multilink proto out now?) while the cube is a multi link bike, which makes a floating brake less necessary or less useful than on a single pivot. It's likely there for testing purposes.
It was also hinted in the PB article from a few weeks ago. https://www.pinkbike.com/news/inside-pivots-secret-carbon-fiber-r-and-d…