Internal hub gear manufacturer Classified has partnered with performance brake specialists TRP to create a 16-speed one-by groupset. The Vistar // Powershift is available in a 1x16 configuration for road riding or 1x15 for gravel riding, though the "1x16" notation is a little misleading; there isn't a 16sp cassette, just 16 unique gear ratios.
The new Vistar // Powershift groupset makes use of a 12-speed cassette paired with a Powershift hub to offer sequential shifting, automatically changing the hub gear when necessary to provide 16 sequential gears. For riders looking for even more gearing, it is possible to take full control of the shifting, theoretically allowing riders to have 24 overlapping gear ratios from a one-by drivetrain.
