Early 2016 T120, not dropped, stopped downshifting at about 6500 miles. The dealer fixed it under warranty by replacing the shifter shaft (only) and everything attached to it. The techs could find no damage to or problem with the original assembly.
I'm in the habit of shifting into first gear before traffic lights change, and then checking that the bike is in first by gently pressing the shift lever again. Before the bike stopped downshifting, for a few weeks the shift lever could be moved downward with the bike already in first gear. It seems to have been an interesting early symptom of impending shifter failure.
2018 T120 with 20K miles and no issues. However, no drops either but it has been ridden in lots of 110+ degree heat. My transmission is probably the smoothest shifting of all bikes I have owned over the last 40 years.
Here's a thread on shifter damage. See page three for a pic by Simon64ds of the spacer he made that fits between the shift pedal and the left engine case. It prevents transverse movement of the shifter shaft if the bike is dropped. I have the same spacer on my T120. It's the black ring in the photo. It's really easy to install. Remove the shift pedal bolt and the pedal. Slide on the ring, and reinstall the pedal.
No, I honestly don’t think an oil seal would have the strength required. But feel free to experiment - let us know how you get on?? :grin2: Agree. The material for this needs to be rigid, either nylon or aluminum. The idea is to spread and dissipate impact forces from the shifter shaft to the...
Nope, no issues with my '20 T120 or my '19 Street Twin. I will say the Street twin can take a bit of work to get into neutral. The T120 has an incredibly good transmission, getting it into neutral is almost a telepathic experience.
Heres a snippet from Triumph I bumped into on another forum relating to someone with this problem on a T120. View attachment 735128
Makes you wonder about factory QA....Triumph are busy ruining what was a growing reputation for design and manufacturing quality.
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