So I iwas in the middle of a workout and paused to go pee. When I tried to start again it wouldn’t run smooth. I was putting out over 400 power at a cadence of 50 and the target was only in the low 100s. FYI, my FTP is only in the 150s. Paused, unpaused. Even unplugged the my kinetic trainer. I noticed a burning smell and it turns put my trainer was pushing so hard it was melting the tire as I tried to spin. Now my rear hub is completely shot as it started grinding.
Do you use ERG mode? It can take the trainer a few seconds to adjust resistance to a change of input, so when you stopped it upped the resistance to max and then you couldn’t get back on top of it. The fact that you turned it off and on should (probably) rule this out however. Very strange indeed.
Yeah, dead hub is most likely a result of something other than the trainer. This episode might have brought it to light, but I doubt it is the root cause of the failure.
In 10+ years of hard trainer use and reading on forums, I’ve never heard of an issue like this killing a hub. I suspect something else is at fault here, especially with what seem to be low watt loads in most cases, and 400w+ is hardly bike killing wattage.
I’d look at maintenance history and axle setup and bearing preloading as most likely issues. Maybe trainer roller pressure was excessive, but that would likely be visible from massive tire deformation, so seems unlikely to me.
Only been riding a few years and didn’t know hubs went bad or had to have bearings replaced…My trainer wheel is from my first bike, so I think that solves that issue. Thanks for the insight.
The melting part I mention is from all the rubber build up on the trainer in the photo. That is JUST from yesterday. I always keep the contact point/roller super clean. I could smell it burning while trying to pedal. I actually thought it was the trainer starting to smoke. That is how hard the trainer was pushing against the tire.
And the following info I already quoted, seems like bike wheel hub and bearing concern (grinding) to me.
Yes, it is a bit confusing because there are multiple concerns mentioned, but I think he is talking about the bike wheel for that part of it.
Sure, it’s possible to be a different tire, but considering the Kinetic trainer and Kinetic happens to offer a green trainer tire, I think it’s a reasonable assumption that he has a trainer tire. Good idea to confirm though, with respect to the rubber issue. But my money is firmly on it being the Kinetic tire.
As far as me calling it the rear hub. I can completely pull the axel out and some metal fell out with it. Doesnt sound like hub was the right word.
I think now I just need to find out why TR wouldn’t smooth out. It sometimes makes me put out high power the first couple seconds of a work out and then I am good to go. In this case they were 20 seconds or more without smoothing out.