Support Center

2013 ENDURO EXPERT EVO rear thru axle comes loose

Tony Harlich Jan 15, 2014 10:51PM PST

REAR HUB Specialized Hi Lo disc, 4x-sealed cartridge bearing, 12mm thru-axle, 32h

Hi, on the above spec bike my rear hub thru-axle has come loose and the wheel rear wheel has nearly fallen off twice since I have had the bike. I tighten the hell out of the thru-axle and it still keeps coming loose. Is there a trick to avoid this from happening. I have never had this happen on a bike before. Obviously a severe safety concern.


Up 2 Rated Down
Kyle Blomquist Jan 16, 2014 08:54AM PST SPECIALIZED Agent
Hi, Tony!

I would recommend trying a little bit of Loctite on the screw-end of your thru-axle. Otherwise, you can bring it to your local Specialized dealer and see if they can look it over and see what can be done to help you out.

Happy riding!
Up 0 Rated Down
Justin Boland Aug 05, 2014 01:29PM PDT
I have had the same thing happen on my 2013 Stumpjumper FSR - same hub, same thru-axle as the Enduro. This must be a problem with the hub, since it is the only thing that could be creating friction between wheel and TA in order to unscrew the TA. This is a definite safety concern. I'm hoping for a satisfactory response from Specialized.
Up 0 Rated Down
Specialized Customer Service Aug 05, 2014 02:35PM PDT SPECIALIZED Agent
Hi Justin, not too sure what could be causing your thru-axle to be loosening. I recommend bringing it to your local Specialized dealer and have them take a look at it to see what can be done.
Up 0 Rated Down
curt Jun 26, 2015 07:35PM PDT
I just had that happen today. I came across this thread by searching "thru axle coming loose". I have a 2012 Specialized Stumpjumper FSR. It caused me to have a bad crash going fast downhill. I'm surprised to see my search results about how many others are having the same the initial findings it seems to be a lot of Specialized '12 and '13 having this.

Up 0 Rated Down
Thomas Fowler Jun 29, 2015 10:47AM PDT SPECIALIZED Agent

Thanks for reaching out. I would ask you to visit your local Specialized retailer asap, ask them to preform a product eval and to contact their Retail Care Rep.

Post Your Public Answer

Your name (required)
Your email address (required)
Answer (required)