Thru axle-bang!
Discussion
Strange one -to me at least.
Out for a ride in my gravel bike -puncture. Stop to change tube, can’t get wheel off.
Thru axle-6mm hex bolt -tried using Crank bros multi tool -no joy .its not shifting. Blast -4 mile walk home….
Got home ,used bike specific torque wrench to undo it and it comes loose with a mild ‘ crack’.
Pic below is what it looks like-is it common for them to break at the thread. ?
It’s a newish bike -2 years old low use. Thru axle was removed in jan for mudguard fitting so its not been in for years! And replaced/torqued using bike torque wrench. 15 NM as per specs.
I know nowt about thru axles-are there any good makes to go for/avoid? Any thoughts or pointers welcomed before I venture into google fu.
Thanks
As an aside I did get a Strava second place on a hill I walked up-inexplicable!
Out for a ride in my gravel bike -puncture. Stop to change tube, can’t get wheel off.
Thru axle-6mm hex bolt -tried using Crank bros multi tool -no joy .its not shifting. Blast -4 mile walk home….
Got home ,used bike specific torque wrench to undo it and it comes loose with a mild ‘ crack’.
Pic below is what it looks like-is it common for them to break at the thread. ?
It’s a newish bike -2 years old low use. Thru axle was removed in jan for mudguard fitting so its not been in for years! And replaced/torqued using bike torque wrench. 15 NM as per specs.
I know nowt about thru axles-are there any good makes to go for/avoid? Any thoughts or pointers welcomed before I venture into google fu.
Thanks
As an aside I did get a Strava second place on a hill I walked up-inexplicable!
Definitely use anti sieze or a small dab of good old fashioned grease on the threads. They're very exposed to spray and salt in the winter.
On a related note, does everyone really do them up 15nm as the max spec indicates? I suspect I do mine up to about 5nm if that, similar to the effort I'd put to close a traditional quick-release lever. I've *never* had a thu axle come loose on many miles of road, gravel and MTB with that approach; am I dicing with death?!
On a related note, does everyone really do them up 15nm as the max spec indicates? I suspect I do mine up to about 5nm if that, similar to the effort I'd put to close a traditional quick-release lever. I've *never* had a thu axle come loose on many miles of road, gravel and MTB with that approach; am I dicing with death?!
Fair points re greasing etc. having just checked the threads felt a ‘bit greasy ‘ so not completely dry but -hands up-I know I didn’t add any anti slip when I put them back in , in Jan. so likely contributory cause I guess. I usually would do but bike being newish I guess I just overlooked it.
Any ‘ go to’ or ‘ must avoid’ replacements makes?
Any ‘ go to’ or ‘ must avoid’ replacements makes?
pete said:
Definitely use anti sieze or a small dab of good old fashioned grease on the threads. They're very exposed to spray and salt in the winter.
On a related note, does everyone really do them up 15nm as the max spec indicates? I suspect I do mine up to about 5nm if that, similar to the effort I'd put to close a traditional quick-release lever. I've *never* had a thu axle come loose on many miles of road, gravel and MTB with that approach; am I dicing with death?!
A good point re torque. As I was walking home, to take my mind off the blisters I was reflecting on had I done it up too tight and did others use less NM to ensure a decent multi tool could undo when out and about. I also thought about death and dicing! On a related note, does everyone really do them up 15nm as the max spec indicates? I suspect I do mine up to about 5nm if that, similar to the effort I'd put to close a traditional quick-release lever. I've *never* had a thu axle come loose on many miles of road, gravel and MTB with that approach; am I dicing with death?!
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