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VorsprungSuspension mikelevy's article
Aug 14, 2017 at 13:43
Aug 14, 2017
Is This Linkage Fork the Future of Suspension? - Crankworx Whistler 2017
I spoke to them for a good while today. While everyone should always be skeptical about new and largely unproven designs, there are good reasons to take these guys seriously enough to at least listen to what they have to say - the design does have substantial potential.
VorsprungSuspension VorsprungSuspension's article
Aug 10, 2017 at 10:07
Aug 10, 2017
Inside the Float X2 and CCDB Air - Video
We don't make a sleeve for the X2, only for the Float line (CTD, DPS, RP etc). We don't "work only on Fox products" either - we don't produce air sleeves for Cane Creek for a few reasons, but they are only related to the design constraints of the shocks themselves.
VorsprungSuspension paulaston's article
Jul 12, 2017 at 13:20
Jul 12, 2017
Trek Debuts New RE:aktiv Thru Shaft Shock Technology
Until it ingests air from the air spring side, cavitation won't be any issue on that shock as it runs positive pressure gradients in both rebound and compression - it can't draw a vacuum anywhere.
VorsprungSuspension paulaston's article
Jul 12, 2017 at 13:16
Jul 12, 2017
Trek Debuts New RE:aktiv Thru Shaft Shock Technology
@emptybox: actually you'd have to replace it with two (or a twin-lip seal, which is effectively the same from the friction POV)... any shaft exposed to the outside environment will need both a pressure seal lip/surface and a dust scraper lip.
VorsprungSuspension paulaston's article
Jul 12, 2017 at 13:13
Jul 12, 2017
Trek Debuts New RE:aktiv Thru Shaft Shock Technology
Hysteresis by definition is when any characteristic of a system has some dependence on its time history. In the case of dampers, that means its force vs velocity characteristic varies somewhat depending on what has been happening with the movement of the damper up until the instant in time that we are looking at. For example, dampers will typically generate less force at speed X if they have been accelerating rapidly up to that speed than if they have reached a steady-state velocity at that speed. Effectively this is lag, and if it is excessive and uncontrolled then it can inhibit performance. However, when damper curves are viewed graphically, there can be many different causes of what looks like a lag in damping force response, but not all of these are actually a true lag. For example, position sensitive dampers will always look like they have a ton of hysteresis when tested on a dyno because we are effectively plotting a 3D curve in 2D. However, they can have extremely little lag in terms of force buildup - it just depends where in the travel it currently is, not necessarily where it was before. Likewise, dynamically unstable valves (eg regressive valves) can create seemingly unstable damper curve responses on the dyno which is partly because the inputs typically generated by dynos are controlled by velocity and very good at maintaining a smooth velocity profile that, whilst great for characterising most dampers, is a little bit unrealistic compared to actual inputs on the bike. More importantly though, hysteresis is a buzzword (like cavitation) that is thrown around a lot because it sounds uber techy, but is also very commonly misunderstood. A lot of shocks market themselves as "low hysteresis" which is absolutely relevant if it's for an F1 car that needs huge forces very suddenly at low velocities, but not so important on long travel suspension on mountain bikes.
VorsprungSuspension AJBarlas's article
Jun 22, 2017 at 9:02
Jun 22, 2017
Vorsprung Luftkappe - Review
@imbecile: That was our understanding as well - I'm sure the parts are not quite identical but that appears to be the design intent.
VorsprungSuspension AJBarlas's article
Jun 21, 2017 at 15:35
Jun 21, 2017
Vorsprung Luftkappe - Review
Our understanding from the Rockshox press release is that they updated the Pike's air spring to be much more like that of the Lyrik/Yari, which remains basically unchanged. Mentioned here - http://bit.ly/2sWUlBe
VorsprungSuspension AJBarlas's article
Jun 21, 2017 at 13:10
Jun 21, 2017
Vorsprung Luftkappe - Review
@Happymtbfr: it's been considered, but then we need to provide a whole bunch of different length air shafts which adds to the cost as well as being inconsistent in their volume due to the variations in length.
VorsprungSuspension AJBarlas's article
Jun 21, 2017 at 8:24
Jun 21, 2017
Vorsprung Luftkappe - Review
Nothing is done up to torque in our workshop with a multi tool, don't you worry :)
VorsprungSuspension AJBarlas's article
Jun 21, 2017 at 8:22
Jun 21, 2017
Vorsprung Luftkappe - Review
They're an adjustment like rebound, compression etc, they let you set the fork up according to your own priorities rather than hoping whoever designed it likes the same feel you do.
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