2017 T120, about 16,000mi on it. Never dropped, never abused, regular oil changes and ridden pretty easily for most of its life. I'm a very casual rider overall.
May 2020 - Bike went in to dealer for repair due to inability to downshift. The first sign of the issue was being able to actuate the shift pedal down after already engaging 1st gear. Slowly the problem grew from random misses in the down shift, to finally getting stuck in 5th gear. Probably could have shifted it into 6th with no problem, but just rode to the dealer in 5th gear to drop it off.
They made the repair and all felt fine. Not exactly sure which part(s) they replaced however. Now I really question what exactly was done.
March 2021 - Bike is at a dealer again for the exact same issue. Only difference this time is that the failure was immediate. One day shifting was normal, and the next day it was wonky. It also seemed to shift ok after the bike ran on the highway for a few miles, as if warming it up made it shift properly. This dealer found a "bent and misaligned shift shaft and detent" and are currently in discussion with Triumph to get a goodwill repair done.
I could have made the repair myself, and I could have forgiven the issue the first time. But to have the failure pop up again so quickly upsets me. I'm in limbo about what to do with the bike once I get it back. I do love it, but I also don't like that this is a weak point that may need regular replacement. It really shouldn't be such an easily worn out part.