Is this the reinvention of the Sram shifters?
Quadshift is the name of the product from Dutch company Leap Components: this corresponds to an upgrade of the Sram AXS shift lever, with which an additional, separately purchased so-called blip shifter can be integrated. This allows you to shift gears and ride the Vario support up and down with just one hand. Strictly speaking, it looks like this: There are four control surfaces, two for upshifting via thumb and index finger, one for downshifting with the thumb and one for operating the seatpost via thumb.
Since this setup eliminates the need for the controller of the AXS post, the weight should be reduced by around 50 grams. The Quadshift should not be compatible with the Transmission levers.
Leap Components has other products on offer that adapt the ergonomics and feel of manufacturers such as Sram, Wahoo or Garmin.
Note: This content has been automatically translated from German. Please report any incorrect translations.