Hi all,
I’ve been using the 2017 Gen 2 Kickr Snap for a few months now, and suddenly it developed a weird humming sound. Can be described as knocking at low velocities.
I tightened all visible bolts on the machine, did a few Wahoo app spindowns, to no avail.
Contacted Wahoo support via email but they’ve been non-responsive for 4 days and counting. Anyone have any similar experience? How did you solve it?
Thanks, could you elaborate a bit more on the ‘flywheel bolt’?
Is that bolt hidden behind a plastic cover?
Cheers.
I did not, thanks for the tip. Did Wahoo specify any particular torque?
Perfect, thanks.
Will try that.
I’m starting to have issues similar to what was described in this thread and wanted to know if the instructions provided helped those who followed them.
TIA
Hi Tony,
I followed the instructions and no, they did not solve the issue.
Wahoo has since replaced the unit. Of course the new unit also has issues: the electric circuit randomly cuts out mid-ride. I have to get off the bike in the middle of a hard interval, wiggle the cable, then resume the workout.
Needless to say I’m never getting any Wahoo product again.
Thanks guys for the feedback. Sorry to hear about your problems. I have a first gen snap and have been lucky with no real issues until now. I’ll try the suggestions and see if it helps.
So my Wahoo Kickr Snap (2017) started making that rattling noise but the difference for me now compared to 2017 when I had my purchase replaced on warranty is that … it’s no longer on warranty. 
Wahoo Support has told me to follow the procedure outlined above to tighten the bolts but I’m mechanically inept and it hasn’t helped.
The next step now is for me to buy a new rear assembly from Wahoo to replace the one that is making the rattling noise for $200 USD but that seems like a lot for a product that I’ve only used half of the year for a few years.
Has anyone ever bought a replacement rear assembly for the Kickr Snap from Wahoo? Did the installation go smoothly?
Does anyone know what the impact will be (medium/longer term) of continuing to use the trainer in while it’s in a state of making this rattling noise?
Is it producing additional wear that will reduce it’s lifespan?
Is it producing less accurate results?
Is this problem “just” the noise?
Had same noise crop up, I spine the wheel backwards and it stopped, dunno of the resistance got stuck or what but seems to have corrected for me. Other wise it was quite the annoying click/thump
Well it looks like I’m having that “knocking” problem as well with my 6 month old Gen 2…It’s under warranty so I’ll contact them. Don’t want to be out of a trainer for weeks though so I was wondering how they handled this, do they send a replacement unit and then you send yours back with prepaid shipping ? Thanks !
Thanks…that doesn’t sound very promising…was it the V1 ? I seem to remember they were plagued with problems.
I uploaded a video here : Gofile - Free file sharing and storage platform where the noise can be heard and shows what looks like an internal alignment problem, see the end of the video. The wheel itself turns normally on the “outside”. Is that the problem you were having ? Maybe that “alignment” issue is normal ?
I don’t have a 19mm socket so can’t try to loosen the flywheel and center it, if that’s the problem.
ok, I’ll see if I can borrow a 19mm socket but I wonder if the axle didn’t get bent for some reason…Hopefully Wahoo will get back to me quickly and offer some decent support. I contacted them for a bug with the Wahoo Bolt and they were absolutely useless, failing to understand even the most basic of issues and seemed unable to depart from a ready made script.
So I finally found the proper to loosen the screws on the roller, I centered it and tightened them the max…no change. These screws don’t seem to do any actual “internal” tightening they just allow the roller to be centered so that would only help if for some reason it’s gone off center. When the noise/ticking comes from “inside” you’re still SOL 
Loosened and then tightened the flywheel Bolt too and no change.
There seems to be something wrong “inside”, what it is…is anyone’s guess !
I’ve just installed a new “rear assembly” that Wahoo sent. I definitely had some sort of bearing issue in my original and I sent the video to customer support. I guess it was still under warranty and they sent me a new rear mech to install. It was pretty easy to switch out and so far no issues.
Good to hear, let’s hope it doesn’t develop the same problem over time.
I suspect opening it up, cleaning it and adding some WD40 and/or grease could go a long way in fixing that noise some of us are hearing but I don’t see an obvious way of removing the flywheel even after the outer bolt has been removed. I found some tutorials on YouTube for the Kickr 18 but not for the Snap.
The flywheel just takes a couple taps with a rubber mallet and comes right off. I had a similar rumbling in my unit combined with an almost clicking sound. Turns out when I pulled the side cover off the non-flywheel side bearing was shot. There was a lot of powder and some obvious heat discoloration of the metal. Mine was a 2018 but out of warranty, Kickr did offer me a “rear assembly” for ~$230, I ended up just replacing the bearings myself with these from Amazon, smooth as when it was new now.
I removed that side cover too but didn’t see any obvious problems, there is a “collar” though that needs to come off to pull out the axle. Didn’t see a way to remove a bearing like the one sold on Amazon, I’ll take a closer look. So you only had to change that one bearing on the non-flywheel side ?
So what I did was remove the flywheel, then the lock ring on the non-flywheel side under the cover. Then I had to use the heatgun method as above to remove the roller set screws. Once you do that you can tap the entire shaft out of the unit. The flywheel bearing stayed attached to the shaft and I used as screwdriver to tap the bad one out of the housing.
I ended up replacing both bearings because I was already in there and didn’t want to have to do it again, but only one was faulty.