I just saw this company in the UK is selling 12 speed upgrade kits for SRAM. They send you the parts needed and you rebuild the shifter. If you watch the video it doesn't look very difficult.
Yeah, this looks awesome! The crew on the cycling tips podcast said sram levers are pretty straightforward to take apart and they were also really stoked on this. It's surprising that sram themselves haven't down this yet considering how seemingly small the change is.
Fitted the Ratio Technology 12 speed shifter bits this weekend which was a very straight forward install, having rebuilt several Sram mechanical shifters(so knew the basic drill). X01 derailleur, XX1 Eagle chain, 42T X-Sync chainring, and an XTR 10-45 cassette. Extremely smooth running drivetrain, and the shifting is simply exceptional. A marked improvement from the full Force 1 10-42 setup that worked, but a bit sluggish and never buttery smooth. The XTR cassette was the unknown variable and a gamble, but it works far beyond expectations. I've not had the opportunity to run a full XTR 12 speed group, but this combo is as good as anything I've experienced. I was looking for a tighter ratio offering than the current mega-range trend and the XTR cassette fit the bill. I expected it to work, but didn't expect the combo to synergize. Pleasantly surprised. Will report back as the dust settles and miles fly by!
