This is not april fools. This is not a drill.
https://www.flickr.com/photos/78152658@N05/26099788221/in/photostream/
lol
I can’t hate it, but as an experiment I’m not sure you can learn anything from the headtube gizmo, since you’re radically changing the top-tube length. Still impressive tho. Is that a 90 HTA on the far one?
Also curious as to whether this is a cheaper/better solution than actually just building all of the fork/HTA permutations on different frames and forks.
neat that it exists but it won’t behave the same way as a real bikes with those geos
I’m digging the rear brake
tc: i have no idea what’s going on with most of that stuff on that bike.
lean angle, front wheel angle, force on bars? The three traces will be out of phase, would be better with separate y axes.
What the hell is the analog data recorder gonna do? Isn’t most bike geo done using the “ass metric” anyways?
that’s for measuring tectonic plate movement actually.
No no, you measure tectonic plate movement using geodetics. That’s what your garmin is for.
the cockpit can stay in nearly the same place throughout all the adjustments
illustrates even more how completely irrelevant “top tube length” is, effective or otherwise
the fork moves around independently from the steerer tube, unless they coincide in the same headtube
the stem actually attaches through a third headset stacked on top in the pictured setup, not sure what that’s about, looks like isolation for one of the measurements
Also the pen lever arms are different lengths so the traces will be out of phase by different amounts at different magnitudes.
the cockpit can stay in nearly the same place throughout all the adjustments
illustrates even more how completely irrelevant “top tube length” is, effective or otherwise
the fork moves around independently from the steerer tube, unless they coincide in the same headtube
the stem actually attaches through a third headset stacked on top in the pictured setup, not sure what that’s about, looks like isolation for one of the measurements[/quote]
The stem is attached to the steerer through that spring mechanism that you can see in one of the flickr photos. The spring deflection, which is measured, is proportional to the force on the bars about the steerer.
How does the fixed part of this arm not bottom out? Are they expecting to only roll around on extremely flat surfaces? Seems like even a slight bump in the pavement would be bad.
Adjustable geometry bike by Robin Mather, on Flickr
I don’t think it has a rear brake.
[quote=Andrew_Squirrel]How does the fixed part of this arm not bottom out? Are they expecting to only roll around on extremely flat surfaces? Seems like even a slight bump in the pavement would be bad.
Adjustable geometry bike by Robin Mather, on Flickr[/quote]
Or even letting the tire pressure get too low
Is this SCIENCE! or STEAMPUNK! ?
I can’t tell.
they’re Marathon XRs
fuckers stand up on their own
nm dumb