I debate that it’s fixed. It’s still an issue I’ve been experiencing since even that “fix” was rolled out. This I get now on my Kickr V5 I that the level of resistance is less than before the change that broke resistance. Need 2-3 gears higher for the same output.
Ive raised a case with Zwift support but it just gets shutdown without action. So I’ll maintain my comments that Zwift have no focus or desire to address this or acknowledge there are still issues
If the issue was fixed, wouldn’t the known issue ticket# (conn-2361) shown under the thread title be removed, or a “Solved” post provided? And/or, if reaching out to Zwift support, referencing this “conn-2361” and ask if there’s a resolution or fix?
Been noticing the same thing with my Kickr core. I usually use the all arounder virtual shift gear option. Up until recently I would usually sit in 15-16 on the flats. All of a sudden I need to gear up to 19-20 or else I spin out. Also noticed the resistance almost inverting. I’ll go from 0% to 3-4% grade and the resistance will drop alittle instead of increase.
This is definitely not fixed. I haven’t been on Zwift in about 2 weeks and just on it right now. Literally resistance dropped and I spinned out during a workout. Quite ridiculous this issue has been open all winter
I have moved beyond frustration to telling people starting indoor cycling to avoid Zwift. I paid a year membership so they have until it expires to have this working. I liked Zwift but the sheer incompetence has ruined my enjoyment. Every time I start a ride and the resistance is wonky I am less and less inspired to ride. I have a sore SI joint and when I shift down I need it to respond now not in 3 minutes as it hurts to push hard. I have started rides where I can shift from 8 to 24 to 1 and back to 24 without any resistance change. Then the slope changes from 0 to -2 and it gets harder to pedal plus shifting down does not reduce resistance. I say started because after a few kilometers I abandon the ride.
Hi folks,
I’m going to break this issue out into new known issue threads based on manufacturer since we’re tracking a couple of reported bugs internally both with Tacx Neo 2T resistance issues and Wahoo KICKR and KICKR CORE resistance issues. If you can reply to me here with the details below I’ll add your report to the new thread so that I can share with our engineering team for investigation:
Trainer Model (if KICKR, specify the version, e.g. V4, V5, V6, Move)
Trainer Firmware version
Confirm if you are using Zwift Click, Play, or Ride
Confirm Firmware version of the Zwift shifting device you are using
Confirm which platforms you are experiencing the issue with (e.g. AppleTV, Android, iOS, macOS, Windows)
Confirm if you are experiencing the issue with native bluetooth, bluetooth bridging via Zwift Companion, and/or WiFi
Confirm if you are using Virtual Shifting with Zwift Click, Play, or Ride
Confirm your in-game Trainer Difficulty setting:
Confirm your in-game Shift Style and Gear Range settings:
If using Virtual Shifting on a normal bike (not Zwift Ride), please confirm your front chainring size
Hi Alan,
appreciate the focus, but having taken 4 months to get that focus is pretty poor. Go back too your engineers and find out what they changed between 1.104 and prior versions
In saying that
Wahoo Kickr v5 (latest firmware v4.5.74)
Apple TV, using bluetooth
Hi Alan,
I am still experiencing resistance problem reported here.
ERG in workout mode works fine. If I don’t use Zwift play it works fine.
Resistance issues appear immediately upon starting a ride.
Trainer Model: KICKR Move
Trainer Firmware version: 1.5.24
Zwift Play
Confirm Firmware version of the Zwift shifting device: Version: 1.3.1
Confirm which platforms: MacOS
Confirm if you are experiencing the issue with: Both Bluetooth and Zwift Companion
Thank you
Helen, did you get your resistance issues fixed?
Hi Alan,
Details below:
Trainer Model (if KICKR, specify the version, e.g. V4, V5, V6, Move) - Kickr Core v1
Trainer Firmware version - 1.5.36
Confirm if you are using Zwift Click, Play, or Ride - Ride
Confirm Firmware version of the Zwift shifting device you are using - whatever is the most updated version
Confirm which platforms you are experiencing the issue with (e.g. AppleTV, Android, iOS, macOS, Windows) - windows
Confirm if you are experiencing the issue with native bluetooth, bluetooth bridging via Zwift Companion, and/or WiFi - native Bluetooth but have tried bridging as well with the same issue
No, unfortunately, it is not fixed. I just learned to live with it. At the start of the ride, my cadence is like 25-40 rpm, with the virtual gear at 20! At that gear, there is still barely any resistance. If I increase my cadence, it spins out. I very slowly increase the cadence and lower the gear and after about 10min it sort of works. I just can’t coast to 0 cadence otherwise I have to start the process again.
If I take off virtual shifting and shift with the bike gears, it works fine. 
I have started to zwift less because it is just a hassle. I’ve been zwifting since 2018 so zwifting is not new to me. Also I have had virtual shifting for over 3 years adn this is the first time I’ve experienced this kind of issue for this length of time. I hope they get if fixed soon.
@Mark_Hulskamp @Helen_Colberg @Colin_McAndrew1 I appreciate you sharing those details from your setup and understand how frustrating this is in terms of the impact to your Zwift experience. I’ve added a couple of additional bullets to my initial post above that would be helpful in our investigation trying to reproduce your issues:
@Mark_Hulskamp I see your KICKR is currently on firmware 4.3.0 and our records indicate it’s been on that firmware since at least July 30th 2025. Could you please let me know if your Wahoo app is currently showing 4.5.74 as installed, or if you do have a firmware update available still? I know you aren’t using Virtual Shifting, but could you also please confirm your current Trainer Difficulty setting as seen in my example screenshot?
@Helen_Colberg could you please confirm your Trainer Difficulty setting along with your Shift Style and Gear Range settings as seen in my example screenshots? I see you mentioned everything works fine with Virtual Shifting disabled and using your physical gears to adjust resistance. Can you please confirm your front chainring size (i.e. how many teeth) and which cog you use on your cassette you typically use when trying Virtual Shifting?
@Colin_McAndrew1 could you please confirm your Trainer Difficulty setting along with your Shift Style and Gear Range settings as seen in my example screenshots?
@AlanZ - I’m set at the default 50% difficulty though I’ve bumped it up and down ~25% and still saw the same issue.
I always use the Sequential option and primarily use the All Arounder but switch to the Climbing and Flat options frequently depending on the course/race. I’ve also gone back to the default mixed terrain option but in all scenarios the resistance issue persists. How this helps!
Trainer difficulty is at 50%. Also, yes, there is now a firmware update coming up for my kickr v5 (It NEVER has in the past, hence why been staying on 4.3.0. I’ve updated today to 4.5.74 and will test
That’s puzzling since that firmware update shipped more than two years ago
Thank you @Colin_McAndrew1, these details are helpful. Could you please try the below:
Thank you, Mark. Please also let me know if you experience the same issues as before if you try setting Trainer Difficulty to “Max” or 100%, even though I know you typically keep it at 50%. “Max” or 100% should give you the most noticeable and realistic changes in gradient and resistance as you climb or descend.
Stil same issue.. Need 2-3gears higher than prior wth the 1.104 update. So something is clearly different between 1.102/103 and what broke in 1.104
Sure thing. FWIW I’ve been doing manual spin downs multiple times a week. It initially seemed to reduce the impact maybe 30-40% but only for the ride immediately afterwards. Subsequent rides don’t see the same benefit and lately the spin down has not made any difference. With that said, I’ll give it a shot and switch the resistance to 100% and report back.
One note, I was trying to think about what other factors could be contributing to the issue. This may be completely anecdotal, but I normally use the Aero socks on my avatar. I know they are suppose to provide a small aero boost when riding outside of the draft. I switch them out mid ride to standard socks and I felt like the impact of the resistance issue was lower, a bit…Definitely not gone but fewer resistance drops/flips & spin outs and the ones I experienced after the switch seemed to be shorter. Again, it may have been a placebo effect, it didn’t fix the underlying problem but figured I would pass it along. May be something to include in QA testing.
@AlanZ just performed a spin down and currently riding with the trainer difficulty set to 100% and no change. If anything it’s worse. When from a flat to 5% incline and completely lost resistance and spun out for about 15-20 seconds before it picked up the incline.
