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Yeti high pivot sixfinity patent from September 2021: https://patentimages.storage.googleapis.com/32/ef/b9/62a62f10c7b773/WO2…

I would say still an "excessively" high pivot. There is a weird square jonction in front of the BB.

On the topic of Zerode - 19.03. is the date! Looks like horizontal shock, hp-Horst link without the excessively high pivot, the frame doesn’t look like a tank!

On high pivot design, you can get similar effect than switch infinity (or their 6 bar) by moving the pulley wheel instead of the main pivot. This is possible since pulley don’t need to accept different diameters with fixed tooth count.

Spoke tension does not change the maximum displacement but it affects the force required to get to that maximum displacement. That is where the table at the top is useful.

thanks for this find.

This overview from the following video https://www.youtube.com/watch?v=QXJd3ovqPhs&t=1701s was really helpful for me to visualize and understand spoke tension and its effect. In mtb and mostly gravity lateral load is mostly what matters and spoke tension doesn't affect the maximum displacement (rim stiffness, bracing angle, hub geometry, lacing pattern could effect maximum displacement) but make it so that a higher force is required to get that same maximum displacement.

Adding preload to a spring does not change the spring rate, however, it does change the functional range of the spring. A 500 pound per inch spring on a 3 inch travel device with 0 preload requires a force above zero to start compression and a force of 1500 pounds to reach 3 inches of travel. the same spring with 1 inch of preload would require above 500 pounds of force to start compression and 2000 pounds of force to reach 3 inches of travel. The same would apply to pre tensioning spokes.

A light in the darkness! I feel there is a chance that we actually all kind of agree in a weird way.

I listened to this whole thing. Good stuff.

favorite podcast in a while

Their Instagram post has #pinion #gates So gearbox belt drive dh bike? Good to see them back in the game!

Another company back in the dh game zerode!

"So wouldn’t preloading a spoke increase the amount of force required to start moving a static spoke in the system? The spring is experiencing force in compression and the spoke in tension, but effectively it's same same regarding preload, spring force, and YM, right?" Well, no, it is not the same. With a hub suspended in a rim between two spokes, one spoke pulling up and the other spoke pulling down, the preloads of both spokes are forces of the same absolute value but in opposing directions. In an equilibrium state, these two preload forces will cancel each other out...

that pulley location reduces the negative effect of the derailleur clutch by keeping the chain in more of a parallelogram shape so there isn't as much growth

If you want to go all the way nerdy (and understand a little german), you can use the "spokomat" which includes a spoke tensiometer based on the resonance frequency of the spoke which is a function of its tension (and other parameters like its length and so on). Using your phone's microphone and a frequency analyzer app, you can build your wheel through its resonance frequency alone. It works pretty well (tested it myself) and gives comparable numbers to a regular calibrated spoke tensiometer. https://radtechnik.2ix.de/spokomat.php