I actually also think a v2 of the Cog should include a slight amount of play in the actual code to allow for slight mis-alignment between the cog location and a straight chainline
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Looking at a wider lens and how other trainer makers may be planning for virtual shifting to counter this new offering, I wonder if any of them will take the basic approach already used on smart bikes? That being a fully âself-containedâ control system vs the multi-step way Zwift does it with the Zwift app in the middle.
Seems like it should be possible for the trainer makers to offer something like an shifting remote paired by ANT+ (skipping BLE since there are 1:1 cons and limited vs unlimited ANT+), that connects directly to the trainer (like Wahoo does with the Climb to Kickrâs IIRC) and alters the resistance level like they do for stuff like the Kickr or Neo smart bikes and such.
Those smart bikes tweak their resistance level in virtual shifting in Zwift and most other apps. Perhaps part of the issue is the wider range of gearing as seen in the trainer setting vs a single and known gearing of the smart bike? That is part of what Zwift is doing in the initial steps by tracking rider cadence and wheel speed to set the base for the virtual shifting.
But if varied gearing aspect is an issue that can be addressed, I am curious to see if trainer makers take on a solution of their own vs waiting for Zwift to open their solution to other trainers?
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This would sort of depend what you are actually hearing. Are you hearing the vibration of the chain vibrate the cone and the cone is creating the sound, like a speaker. Or are you hearing the cone pick up the sound of the chain and amplifying it, like a megaphone. (my analogies may not be 100% accurate outside of my own brain).
Think I need to rewatch some videos to understand the sound better. Wasnât really shopping but new house has low basement ceilings and a wheel off would get me an inch+ back from my research, talked myself out of upgrading but now this has me interested again. Guessing even this version with some extra noise is less than anything wheel on.
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I think you are correct. Wahoo / Tacx (Garmin) could mimic this solution by having their shift controller talk to their trainer, and their trainer talk to Zwift just like their smart bikes do today. Theyâve + Zwift / Rouvy / FulGaz / etc. have already figured out how to mimic gearing with a single speed bike. Companies would just need to take the SmartBike solution and mimic it with their trainers.
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The excess height isnât actually touching the chain, so shouldnât impact noise. And the width is still well narrower than the inner pitch of an 11 speed chain (a hair over 2mm).
Itâs possible (Iâm no engineer) the thicker teeth are quieter by reducing sideway chain movement?
Anyway, looks like itâs just a cheap stamped single-speed cog.
Assuming the âfakeâ get shifts work in Zwift races, Iâm tempted to order one to replace my early Kickr. Right now, I usually have my SS cross bike on the trainer, and if I want to race, I have to swap not just bikes but also cassettes.
Zwift kills the Hub (Classic) trainer and the the Wahoo KICKR Core is now $449 everyday.
the times, they are a-changingâŚ
edited for clarification
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⌠since the One (w/ Cog & Click) continues in the lineup.
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YupâŚedited my post for clarification. The Hub One continuesâŚfor now. 
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A Wahoo/Zwift merger would be WILD!
Not sure if I would be against that hypothetical merger though. 
I can see both sides of this from the consumer perspective:
- Good: hopefully more resources invested in improving / innovating trainers to make indoor riding better
- Bad: potentially if this moved Zwift away from supporting open standards that any smart trainer could use. Bad if you are a Wahoo Bolt / Rohm user, as these would probably get killed off to just concentrate on indoor training tools
never gonna happenâŚwhile Wahoo is still the #1 trainer brand, to exclude other brands would be excluding a health chunk of the overall market and would only allow for the rise of competitive platforms as those disenfranchised users move elsewhere.
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I also donât think the outdoor side would get killed off from a merger - Wahoo is huge in that area.
@mcneese.chad - Iâm not sure if this is the right place to post this. Please move it if needed. This is an addition to the new Wahoo/Zwift bundle announcement. Key new piece of info,â Alongside this announcement is the discontinuation of the Zwift Hub smart trainer, a quiet removal that leaves just the Zwift Hub OneâŚas the sole Zwift trainer option.â
I moved your post under the one on the Zwift Hub One, that is connected to this broader announcement (see other articles and videos linked above).
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So, now that Zwift is selling Cores, are we going to get Cog support on all Wahoo models?
The Cog will fit with no issues. Itâs just an alternate cassette design that fits any Shimano HG compatible freehub (which includes the Core).
The real question is if Zwift will give support for Virtual Shifting to the Core via the Zwift Play, Click Controllers or another method. Signs seem to point to that as an eventuality, but we will have to wait and see. From the comments and speculation, it seems Zwift may be swapping partners from JetBlack to Wahoo for hardware collaboration.
Walk in, create havoc and chaos, look around and say âNope, this is crazyâŚwe are out of here!â
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But you could look at it as: they drove other manufacturers to drop the entry price point for wheel on smart trainers to below $500. This could be counted as âMission Accomplishedâ 
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So I am stuck between a great deal on a wahoo kicker core and biting the bullet on a zwift hub one.
I am a mountain biker with a a trail bike (12spd), a gravel bike (11spd) and a 9spd cheap road turbo bike. I willing to pay more for the ability to swap bikes easily on the hub on, but would like a real world review of the trainer.
Anyone care to share their thoughts on their hub one?
I moved your post under the existing one on the trainer. We try to keep these grouped and despite there not being much (if any?) current feedback on the trainer, this is where it belongs.
At the risk of cross-posting, here are some Zwift forum search results since they seem to have a lot more activity related to the trainer over there (for obvious reasons):
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