I’m hoping someone can help me out. I recently updated the firmware on my Zwift Click, and ever since then things have gone seriously wrong. It feels like the update has completely changed how virtual shifting behaves, or as if my gearing has shifted to a whole different range.
I normally have an FTP of around 305–320W, and hitting 300W was never a problem. But now I can barely reach 300W even when I’m pushing all-out. It constantly feels like there’s a brake or heavy resistance on the system.
Before the update, I would ride in gear 14 and get roughly 220–240W. Now I need to go to gear 17, and even then I have to give absolutely everything just to get into that range.
I’m using a Wahoo Kickr Core (V1) with Zwift Click and COG (bought It in August 2025).
What makes it even stranger: in ERG mode everything works perfectly fine. The resistance and power numbers behave as expected there. The issue only happens outside ERG mode.
What I’ve tried so far:
All software and firmware fully updated
Checked all pairing options (Bluetooth, Companion App, Trainer Pairing screen)
Factory spindown
Power cycle
Zwiftalysis showed nothing unusual
Replaced the battery in the Zwift Click
Has anyone had a similar issue after the firmware update, or knows what else I can try? Any help would be greatly appreciated!
It would be immensely helpful if you could compare the trainer to a second power meter so you’re not depending on perceived exertion to make your case to support (either Wahoo or Zwift).
I don’t understand this description of the problem. What is your wattage if you if you stayed in gear 14 like you used to use before? Why are you going to gear 17 if you have trouble riding in gear 17?
Well if you contact one of those support organizations maybe they will help you, but you are lacking critical proof to support your case. Favero Assiomas price reduction has persisted since Black Friday so if you’re interested in that, there you go. Good luck.
Sorry if my explanation wasn’t clear. If I stay in gear 14, like I used to before the update, my wattage is now only around 140-160W at a normal cadence. Before, that same gear would put me at roughly 220–240W.
The reason I’m shifting up to gear 17 is because for racing I need a much higher wattage. Staying in gear 14 simply doesn’t allow me to produce the power I need anymore. Even in gear 17 I now have to push extremely hard just to reach the wattage that used to come much more easily.
I am having a similar issue with cog/virtual gearing/Play/kickr. All was OK in my ride Dec 7. For my Dec 9 ride and again today my virtual gearing has shifted - my normal flat cruising virtual gear was 15 -16…. Now 11 - 12 for similar cadence and power. I have a left side power pedal connected to my garmin edge only (my Kickr provides power readings for game). The two power meters used to agree +/- 1 watt, now the kickr is +20 watts to the powertap. I also have a separate cadence sensor connected to the game - it still agrees with the cadence coming from the power pedals. My in game settings are unchanged.
I will try all the suggested fixes for this from the Dec 2024 similar problem like firmware, spindown, reboot etc.and hopefully that will fix it. However, something did happen to cause this….. and if I can’t resolve this hopefully “Support” can resolve the root cause. I can ride with the current -4 gearing for most rides but not sure how it will impact me on steeper climbs like the radio tower where I have on occasion needed what was my 1 - 4 low gearing which I assume I have now lost at the edge of the range.
Update: My issues appear to have been resolved by a firmware update to the Play controllers and a Kickr manual spin down which was what was suggested as the fix for this kind of issue.
For the OP: With these kinds of power issues seeming to be an issue/mismatch with controller firmware, the game and maybe the trainer, perhaps you just had a bad update for your Click. Maybe try updating again. If it won’t update because it thinks it has the latest version, you might have to do some kind of a factory reset on the controller first and then update (don’t know how to do this but should be easy). Worst case: factory reset everything in your set up and start over.
I’ve found the solution. I bought a new Zwift Click V2 with Cog, and with this setup the problem is completely gone. Power output and virtual shifting are back to normal.
This strongly suggests there was an issue caused by the firmware update on the original Click. Unfortunately, that issue doesn’t seem to be fixable (at least in my case).
Hopefully this helps anyone else running into the same problem.
Thanks, folks from our club have been asking about this.
They have also reported a problem with gearing being different than before the update. (It’s been reported by others on ZI.) Is the team looking into that as well?
I felt this too on my Thursday night ride, having to ride in gear 1-7 or 1-8 to put out 80W when usually I’d be in gear 1-5. Luckily didn’t need to do any efforts (recovery ride). Assumed it was related to all the other things the update had broken. Wahoo Bike Shift, AppleTV, was on the latest updates at that time (now superseded by the patch update).
I’ve felt for the last week or 2 that I’ve needed a higher gear to produce similar power to previously. Elite Suito, Click V2 on Windows 11 (all with latest firmware/updates afaik).
Something similar happened to me aswell. I usually ride in gear 15 on flats to get ~200-220w on about 85 cadence. Over night doing a race i had to drop down to 13 for same watts. Something felt off with the resistance too. Next couple of races i increased my FTP with 25w out of nowhere.
I have no idea what the issue is, calibrated the trainer several times, at the moment i dont have my assioma duo to check with but something is off.
The trainer / smart bike you have and the firmware version it’s running
Kickr core, came with zwift ride august 2024. Firmware up to date. 1.5.36.
Which shift controller you have (i.e. Zwift Ride / Click v1 / Click v2 / Play / inbuilt controller for your smart bike) and the firmware it’s using.
Zwift ride controllers. Firmware up to date. 1.2.0.
Edit: my issues started november 7. November 5 i did some short high cadence sprints on gear 16-17 ingame (sequential).
Edit 2: tested gears today again, now gear 15 was 202w at 85 cadence on the flat which felt normal, but it did jump to 245-250 first couple of seconds and then down to ~200. Is something causing it to freeze at that initial jump? hmm
Noticed issue was solved above by updating firmware for click v2. But there havent been a single release of new firmware since 2024 for zwift ride controllers.
I still think this has something to do with torque and sprints messing up something.
Like i feel like if i went in doing some 60-70 rpm stuff and added in some sprints i would gain +20 watts for some reason. I have no idea how it works and why but i hope wahoo and zwift have a look at it. Everyone ive looked up who have this issue have done this, either in the warmup for a race or maybe low rpm intervals in a workout or just cruising on low rpm and adding in sprints.
