What exactly is the point of such a massive cassette when you have the double? You're already running friction on the FD, why not triple and get back reasonable steps between gears?
They're retroshifters I think. Front shifters are usually friction AFAIK since you can trim it for cross-chaining and there's only either 2 or 3 positions anyway. Not much point indexing it.
Rear could be indexed but that's not relevant to the decision between a triple/double
What exactly is the point of such a massive cassette when you have the double? You're already running friction on the FD, why not triple and get back reasonable steps between gears?