Thru axle loosening?
#26
Newbie
Still happening?
Hi all, I recently purchased a Trek Domane AL 2, have ridden for maybe ~150 miles so far. Anyway this morning this exact thing happened to me, my front thru axle came loose. Didn't fall out or anything but the wheel started to wobble. Luckily I was on a flat, calm section of road. But damn if I was flying down a hill when that happened...
All I can assume is that either the bike shop did not adequately tighten it (they seemed pretty professional tho), or somebody maliciously untightened it/attempted to steal wheel...? It's the bolt type, torque spec is 10 Nm. I hand retightened it and rode back slowly lol. Guess I should invest in a torque wrench
All I can assume is that either the bike shop did not adequately tighten it (they seemed pretty professional tho), or somebody maliciously untightened it/attempted to steal wheel...? It's the bolt type, torque spec is 10 Nm. I hand retightened it and rode back slowly lol. Guess I should invest in a torque wrench
Did this resolve or did you warranty your bike? The rear thru axle on my new Domane SLR keeps coming loose on its own even when properly tightened. I just took it back to my trek shop and I feel it needs to be warrantied
Likes For EmondaGal1970:
#27
Senior Member
Join Date: Aug 2018
Location: Allen, TX
Posts: 2,654
Bikes: 2021 S-Works Turbo Creo SL, 2020 Specialized Roubaix Expert
Liked 4,106 Times
in
1,446 Posts
I’ve ridden almost exactly 35,000 miles on several different thru-axle bikes over the past 4 years. Never had a thru-axle loosen. Mine are generally torqued at 15nm. The drag on wheel bearings working against the threads is negligible.
Something else must be going on. Maybe the axles aren’t being fully torqued, or someone messed with axle or perhaps an alignment issue with the fork or drop out. Wild.
Something else must be going on. Maybe the axles aren’t being fully torqued, or someone messed with axle or perhaps an alignment issue with the fork or drop out. Wild.
Last edited by MattTheHat; 11-02-22 at 05:35 PM.
Likes For MattTheHat:
#28
Not lost wanderer.
I would add something to reduce the possibility of the axle loosening, either blue, NOT RED, Loctite or just put a rub of beeswax on the threads. The beeswax acts like a thread locker but does not stick hard.
__________________
Cambodia bikes, Bridgestone SRAM 2 speed, 2012 Fuji Stratos...
Cambodia bikes, Bridgestone SRAM 2 speed, 2012 Fuji Stratos...
#29
Of course the user guide says you should check the wheels are securely attached before every ride ...
#30
Advanced Slacker
Join Date: Feb 2017
Posts: 6,232
Bikes: Soma Fog Cutter, Surly Wednesday, Canfielld Tilt
Liked 2,557 Times
in
1,441 Posts
#31
The general opinion seems to be that nobody is sure that the axles were properly tightened at the outset. Anyone who has had a problem will presumably pay more attention going forward, then we'll see if there is a problem apart from user error (or malicious interference). I'd suggest that anyone who may have a problem should check their axles not only before but also after every ride.
Likes For grumpus:
#32
Senior Member
Join Date: Jan 2020
Location: Sacramento
Posts: 1,047
Bikes: Ibis Hakka MX / team machince alr2 / topstone 1 / Cervelo zht
Liked 276 Times
in
203 Posts
2 out of the 3 gravel bikes I have owned the front got lose. The road bike never got lose. Hybrid with QR never got lose. A few my friends with gravel bikes the front axel got lose.
Down hill gravel/MTB/single track plays havoc on a bike.
Down hill gravel/MTB/single track plays havoc on a bike.
Thread
Thread Starter
Forum
Replies
Last Post
Baby Puke
Track Cycling: Velodrome Racing and Training Area
13
09-05-19 03:13 AM