Well, my 2013 R3T had this stalling problem about 6 times, 3 this last Sunday, mostly 3rd to 2nd gear. Dropped off the bike to dealer today and I told them to check the TPS. They did diagnostics and said everything was perfect-- nothing off. They test rode it and nothing, of course, happened.
They then called Triumph and TRI said (I'm getting this second hand) that the conditions 100 degrees and 70% humidity on the day it stalled were factors since the engine has such high compression. (What?) I go pick it up tomorrow with no resolution. At least i have it documented.
Of course my wife is worried sick now I'll get into a situation where I need to downshift and react to get out of a sticky fix and I'll get squashed or something. I am the second owner. Bought it w/ 1400 miles-- now has 4500 miles.
I told the service guy, none of my other old bikes die when I downshift. I'm pretty GD mad. If this explanation is Triumph's idea of a quality $17K bike, I might have to start reconsidering ownership. It's a shame since i love the bike when it's running right, which is all but 6 times. But when it's a safety issue, I don't think Triumph really is giving me a choice.
What has been the resolution for some of you guys?