Adjusting trim is dead simple with Di2. Watch this video. It's easy to adjust between your trainer and wheels.

Yeah but I’m not doing this every time I want to switch bikes. I do some wrenching and know how to adjust Di2 quite well. Thanks for the suggestion though. Looking up close, in the 53/11 you can see the chain coming off the crankset to the small cog is at quite the angle and I have the derailleur adjusted to get it as smooth as possible but it sounds terrible. Seems like the kickr cassette is about .5mm too far outboard.

Anyone here have a perfectly quiet kickr? Are these adjustments required for the Neo every time we change bikes? My buddy says no.

It is possible that the Kickr configuration would work better with a spacer between the crankset and the frame. But it is more likely that Kickr simply flexes the frame in a way that bends the chainstays - and the shifting goes with it. FWITW I had it happen with the original Kickr and the NP3.

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Next races on the schedule: none at the moment

I have a 2017 KICKR, and my drivetrain is quiet. I am running Ultegra 8050 Di2 and have an 105 cassette on the KICKR. I also use my road bike occasionally with eTap. I am not sure it is perfect, but it is good enough that I do not notice undue noise. I have no ideas for yours.

@Alex Great response and ideas. I especially notice this on the BMC team Machine SLR01 2016 generation which certainly can be stiffer. It was worse on the BMC, not too good on my madone 9.9 H1 and so so on my Sworks Tarmac SL6. I also need to get this to work with my wife’s shiv.

Similar issues with my Kickr, I can adjust the shifting so it works, but doing so means I then need to adjust it again to ride the bike outside. Constantly adjusting the bike wasn't an option, too much hassle.

I've ended up solving/avoiding the problem by simply doing 100% of my indoor riding in erg mode and leaving it in a gear which runs smoothly. Which suits me as doing structured training was the main reason for buying the trainer anyway, and I use Trainerroad. Not such a good option if you want to do group rides and races on Zwift or similar platforms.

I’ve got the same issue with mechanical 105, whilst I can trim it quiet it is a faf.

I’d expect that a shim would fix it, but i’ve not found anything.

I had to put a tiny spacer on my Kickr to make it quiet, since then no problems. It was just enough off from the cassette spacing on my wheels that I couldn't quite adjust the derailleur enough to be quiet with the barrel adjuster.

I got the thin spacers from my local shop and they were nice enough to throw the spacer on for me and readjust the derailleur.

Where did they put the spacer?

I've had a similar issue with my elite direto. and I'm annoying by the fact that there is no way to release all resistance on the trainer so I could easily adjust the indexing while spinning the pedals like I would if I had the bike on a repair stand

yes that sucks as well

Where did they put the spacer?

They just put the spacer on with the cassette, just like you would do if you were putting a 10 speed cassette on a 10/11 speed wheel. The only difference was that the spacer was thinner than a typical 10 speed spacer that comes with wheels.

Hopefully I've managed to attach a picture of the spacers I'm talking about... the actual one is really thin, I think 1.5 or 2 mm (it's been a while).

I will say that it took a little convincing, the first mechanic told me that I was just going to have to completely readjust the derailleur every time I took my bike off and on the kickr. He just wouldn't believe me that there's thin spacers out there to adjust cassette spacing (I had already found a set of cassette spacers online but didn't want to order them if I could just get them from the shop). Fortunately the head mechanic overheard the discussion and came over to tell the first guy that I was right and they have to add a cassette spacer occasionally to Kickrs to get it adjusted right.

I have same issue with my Elite Direto, i have 2 bikes - road Kestrel Talon (shimano)105 Road and Trek Speed Concept (Ultegra R8000). Both my bikes are silent outdoor, but on my trainer i see than chain is not running smooth. So i need adjust read derailleurs every time i put bike on trainer after riding outdoor.

I have a 2017 kickr and a 2017 venge disc pro with Ui2 (not sure on model) that I get crazy noise when riding in certain gears.

Largely, I’ve workout on in Erg mode with I think is a good option for a variety of reasons, but, we definitely shouldn’t be getting this noise issue and kickr should address it.

Has anyone found that running different cassettes 105-DA or whatever helps? At this point all I can think to try is adjusting the derrailur every time.