I'm almost 1yr in on this 9.8XT model and after riding it again today I am still totally smitten with it.
There have been some challenges and issues with it. Fault codes, TCU malfunctions (wouldn't turn on first, then it wouldn't turn off or charge)
Creaking drivetrain issues and an issue with the carbon Line elite rear wheel.
Every single time, Trek came to support me on this and I'm very happy to have that backup.
Mods include:
Fox Factory 38 at 160mm
Rockshox Super Deluxe Ultimate coil
One Up components dropper post 240mm
One Up components 35/800 bars
Tannus Armour inserts front and rear
Maxxis Assegai 2.5 front
Maxxis DHR 2.4 rear
PNW loam lever
It rides so very well. I have decided to run it in the high setting after demolishing 2 chainrings and chains running at 150mm with the stock Lyrik and in the low setting.
It pedals incredibly well, and I even ride it on selected occasions and sections without support. Obviously the more fit I feel, the more able I am to use less support.
The descending, especially with the coil (with HBO) and the 38 is just stellar. As I weigh 107kgs the extra weight isn't much of an issue for me. It's planted, supple yet supportive and composed.
The only things I'd like to see on any future revisions would be:
Bluetooth remote controller
60nm torque / 400w power
Size specific chainstays
More stack on L and XL sizes or an XXL size
Slightly steeper STA.
HTA adjustability like the alloy version.
The motor has been great, super silent and just enough to give the support I need. For those weighing less it must be excellent on that aspect.
Overall, no regrets with this bike and it has very much made riding a joy all over again.