I just ran across this yesterday and was surprised I hadn't heard of it before. It's been out for over a year; long enough for a new and improved version to be introduced. User reviews are generally favorable. It's marketed for MTB but should work fine for TT/Tri bikes. It consists of a "remote" (pod with shift buttons) that you can mount on your extensions, and the servo unit which attaches to your chainstay and pulls a short length of cable that attaches to the rear derailleur. Plus a phone app for adjustments. That's it.
The outstanding feature IMO, is that it is completely universal and customizable. In other words, you set the number of gears and the spacing between gears. There is a phone app that allows you to do this. Use any cassette and any derailleur that can handle the range of the cassette. Lets you mix and match brands of derailleurs and cassettes (Sram, Shimano, Campy, whatever) and generations, and never becomes obsolete. For instance if you can set it up for an 11spd bike now and when 12spd comes out (that fits on 11spd cassette bodies) all you need to do is buy a new cassette (and probably chain) and reprogram your shifter.
The remote (shift buttons) have an MTB mount that should work pretty decently for TT bikes. It fits the normal extension diameter anyway. I'd probably mount it with the shifter buttons facing forward/down so I can access them with my fingertips.
It's missing the auto-trim features of Di2 and Etap. There may be other relative downsides as well, but I frankly know little about those systems because they are horrendously expensive IMO, and I've never considered buying them. The D1x seems simpler. The servo unit looks a bit clunky, but not that bad. A big upside vs mechanical or wired electronic is that you don't have to route cables or wires, which can be a big PITA on some integrated systems if you want to hide the cables and you want to make position adjustments/experiments. People who have Etap or Di2, what do you think?
I just finished setting up push button mechanical 1x shifting on my TT bike, so I don't think I'll buy this just yet, but it is intriguing.
Company site:
https://www.archercomponents.com/
Lots of reviews and info. Note that there is a new version out a few months ago (called Trail) with longer battery life, faster shifting, easier battery access, better remote buttons, and an optional button on the remote to adjust the system without using your phone:
https://www.google.com/...2F29%2F2019&tbm=
Servo:
Remote:
The outstanding feature IMO, is that it is completely universal and customizable. In other words, you set the number of gears and the spacing between gears. There is a phone app that allows you to do this. Use any cassette and any derailleur that can handle the range of the cassette. Lets you mix and match brands of derailleurs and cassettes (Sram, Shimano, Campy, whatever) and generations, and never becomes obsolete. For instance if you can set it up for an 11spd bike now and when 12spd comes out (that fits on 11spd cassette bodies) all you need to do is buy a new cassette (and probably chain) and reprogram your shifter.
The remote (shift buttons) have an MTB mount that should work pretty decently for TT bikes. It fits the normal extension diameter anyway. I'd probably mount it with the shifter buttons facing forward/down so I can access them with my fingertips.
It's missing the auto-trim features of Di2 and Etap. There may be other relative downsides as well, but I frankly know little about those systems because they are horrendously expensive IMO, and I've never considered buying them. The D1x seems simpler. The servo unit looks a bit clunky, but not that bad. A big upside vs mechanical or wired electronic is that you don't have to route cables or wires, which can be a big PITA on some integrated systems if you want to hide the cables and you want to make position adjustments/experiments. People who have Etap or Di2, what do you think?
I just finished setting up push button mechanical 1x shifting on my TT bike, so I don't think I'll buy this just yet, but it is intriguing.
Company site:
https://www.archercomponents.com/
Lots of reviews and info. Note that there is a new version out a few months ago (called Trail) with longer battery life, faster shifting, easier battery access, better remote buttons, and an optional button on the remote to adjust the system without using your phone:
https://www.google.com/...2F29%2F2019&tbm=
Servo:
Remote: