I rode my Tune mag 170 rear wheel in a race today. The race was abandoned half way through due to extreme conditions, and as a result my bike got wet. It was not submerged in water or anything, but definitely rode it in the rain.
My rear wheel started making a weird noise toward the end of the ride, and when I checked the bearings, they were super gritty, with some points of high pitched squeeling noises when I turn the axle with my fingers.
Dead bearings, basically.
I have only had this hub since August this year, and this is the first time I have ridden it in the rain, so I am a bit annoyed about it dieing like this.
Anyway, a few questions;
1. Has anyone else experienced such a fast bearing death with Tune hubs?
2. How can I open up the hub to inspect the internals? Can anyone link to, or provide service instructions?
3. What bearings do you reckon I should replace the dead ones with?
I would check with Fairwheel bikes to get info on replacement bearings, etc.
Cielo by Chris King Cross Racer
Hmm, well I would have hoped they would have been able to handle one wet ride, without ending up like they have done. Nothing is mentioned at all about these things being restricted to dry weather riding.
Can anyone else shed any more light on if this is actually a 'thing' with Tune hubs, and what I can do about fixing them?
I have actually just contacted Fairwheel over Facebook about this, so cheers for that suggestion.
OwenJames wrote:Oh, thanks. Would you be able to let me have a look at them?
From what I can see, I need to remove the end cap from either the drive side or non-drive side axle end...
PM me your email address, I'll send them to you.
Try opening them up & cleaning the faces & running some light oil across the face of the bearings / seals etc & then drying off excess. I have the same issues with the front mig hub in poor weather but haven't actually needed to change bearings yet, even though the issue crops up once in a while once exposed to bad weather.
BTW there are tons of decent hubs out there, yes the 240s are well sealed but so are others & what you gain in weather protection you trade off on build strength ...
I use a long M5 bolt, push through the ND side cap hole (as with a skewer), and use the end to push off the drive side cap.
Then the 17mm axle just pounds out with a rubber mallet and the Tune axle tool.
If you can grip the freehub body, that can pull off before pushing out the axle to make it a little easier.
The Tune axle tool fits the axle very precisely, but it isn't necessary if you are very careful.
Disassembly really isn't as difficult as some make it out to be. Once you see the parts and how they fit
you won't have any problems next time.
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