Assistance with Wahoo Kickr

What kind of coasting can you perform on flat ground? can you coast from 25mph to 13mph or do you get pulled over within 3 seconds like i do?

On a 0% grade my avatar will come to a stop pretty quickly. I have observed that sometimes it appears almost instant and other times it can take some seconds but nothing compares to what it’s like in real life.

Thanks for letting me know. I guess it’s just how the game operates. Updating my kickr and launching through my fitness app made no difference.

Basically, unless downhill over 3% there is no coasting. Even when drafting the best I can get is a slight easing in the power but nothing like in real world. It’s an art to learn how and where you can find some relief when racing or trying to ride with a string group. I have found that direct drive trainers are better than wheel-on trainers which offered no relief at all. Again, these are just my observations and others may have different experiences.

1 Like

You mention 100% trainer difficulty. Zwift defaults to 50% and my guess is most people leave it there. Unless you are wanting maximal impact of the hills, I’d suggest taking that back to 50% and see if that makes a difference for you.

i tried all settings and i do want 100%. my trainer behaves the same on all settings. seems like calibration the speed is based off of the flywheel, but playing zwift the speed is based off of cadence and watt. To me it makes most sense to base speed off the flywheel.

can anyone else verify how their kickr behaves?

does your flywheel continue spinning after you have 0 watts and your character stops?

does your flywheel stop quickly up gradient after a high watt kick and your character still moves?

Do most people switch to instantaneous readings instead of 3 sec avg?

Do you turn off erg smoothing? is that strictly a feature used during erg?

really i cant understand how a person could ride at 500watts using this setup. it seems like im around 120watts currently and if i were to reach 300watts id be in my highest gear full blast. since the speed is not based off the flywheel it would be spinning too fast to be able to apply any more power to it on flat ground.

is their a way to add some resistance on flat ground so my flywheel isnt spinning out of control and i can raise my watts?

the main reason i am focused on coasting is my flywheel is spinning out of control on flats.

when i set my game up through the wahoo speed censor and the cadence censor i selected “speed” in the pairing then had to select the speed censor then had to go to unsupported smart trainer at the bottom of the list. when i plug my kickr in and pair it does it have multible options similarly? maybe i goofed in the pairing step? after work today im going to check into that as well as check into the wahoo fitness app numbers. i am suspecting the wahoo fitness app will give me significantly different readout numbers. Can anyone else check their wahoo fitness numbers compared to zwift and tell me if they are the same or if the game chops it all down?

I’m not sure if I’m quite following this correctly, but if you have a Wahoo Kickr then you don’t need to use the seperate speed and cadence sensors at all - The Kickr will send power, and cadence (if Kickr 18 or later) to Zwift and then Zwift will calculate the speed from the power and other variables such as height/weight/gradient etc.

In the pairing screen you should have the Kickr paired as a power source, controllable trainer and cadence.

1 Like

does it even give you the option to set it up as a speed source? im thinking since my old setup was as a speed source maybe it got goofed.

No, I don’t think so and it doesn’t need to. A speed source is only needed for ‘dumb’ trainers that aren’t able to send power data to Zwift. All Zwift needs is the power output - it calculates the speed from that


Do you pair as controllable and Power.

What bicycle do you on Zwift and what gear ratio?

In Zwift the Avatar come to a quick stop on flat road if you stop pedaling, that is normal.

doesnt make sense to me. if my flywheel is spinning and in the real world i would be moving and in the calibration i am still spinning down i should be moving in zwift.

1 Like

You need to produce power to move the avatar, the spinning flywheel does not generate power.

Zwift calculate how quick your avatar stop when your power goes to 0 and it is the same for all riders.

1 Like

so if your flywheel is spinning 45mph on flat ground how do you generate more watts? do you manually add resistance? i produce too much unrecognized flywheel spin.

is the only way to avoid this by riding erg mode?

im riding a fuji absolute 7.0 tire size 32-622. my power is setup as well as controllable. when i do the calibration all my speed is recognized but when i play zwift half or less is being input

i never tried doing a spindown within the wahoo fitness app. im going to try that tonight and see what that results. if it behaves the same ill set my input to erg watts to 400w and see how that works out.

Always use the Wahoo app for spindowns, not the calibration within Zwift. Also, make sure to warm up the trainer for 10 minutes first, then do the spindown.