The Pinion crew said they looked at motorcycles with mid-gearboxes and asked "Why aren't bicycles made this way?"
Okay, but maybe a better question would have been, "There have been other mid-gearbox geared bicycles in the past. Why, in 130 years, have they never established a long-lasting place for themselves in the market?"
Whatever. I wish Pinion all the best. This 12-speed Priority is using is from Pinion's lower-cost C-Line. They say the 600% range is broken into 18% equal steps. The weight is, of course, centered, but the gearbox alone weighs a ponderous 2100g.
The only road test I read said the cranks had to be stopped to shift the Pinion.