No need for the TCD at all. It's simply there for information. Other than checking battery(ies) or adjusting settings, you don't need to use mission control either unless you want to track your rides in that app.
Comp Carbon SL and EVO come with DT Swiss R470 wheels. These are taped and ready to go. They include valve tubeless stems in the bike package but these aren't very good and don't seal as well as some of the aftermarket ones and highly recommend getting some brand name stems.
It is especially important with carbon bars to ensure even distribution of the clamping force across all 4 bolts so that you don't put so much stress that you cause any damage. It is also good practice to ensure the minim spec is met so that there isn't any slippage. It's always good practice...
Highly recommend using a torque tool when re-tightening the bolts. If you don't have one, I am sure a local LBS could help and should do it free... takes 20 seconds.
I hear you! And the cost for the Range Extender or Y cables is robbery too. In any case, my wife's Vado came with the TCD and she uses her phone more than the TCD. I already had a Garmin and prefer that.
Is this happening while coasting or under pedal load? If under pedal load, you will feel a change as the assist decreases which can kind of feel like the brakes are being put on as you move down from Turbo You should not feel any change at anytime while coasting on the bike and while changing...
I replaced the TCD mount and the light mount with a mount I found on Amazon. Works great.
https://www.amazon.ca/gp/product/B07G244SM5/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&th=1
Is that not one of the best benefits!! My cycling friends mocked me for about 30 seconds before falling in line and expressing joy at achieving personal bests on strava segments as I towed the line. There are; however, a few colorful words when getting to the hills telling me to slow the $%&^%...
Congrats! I am just over a month in with my Comp Carbon and absolutely love the bike. You can still get a great workout but have some help when it comes to headwinds and hills or on those days when you just aren't feeling it but know you need to get out to clear the head. I find I ride more...
You will need the Y cable if you want to charge the range extender and the bike at the same time.
You will also need the road cable for the range extender. They get you coming and going!
Unsure if you ordered from an LBS but most will offer 15% discount on accessories when purchasing a bike.