Hello guys, I just received today my new bike Attain SLX 2025, haven't ridden it yet, but I noticed while spinning the front wheel a strange sound… I apologise but l'm kinda newbie talking about bikes that why I need your help.
a video of the noise the bike is making, I think it is coming from the disk rubbing in the pads. Only happens when the wheel is centered or turned right when it is left it disappears.
I live in Germany but I bought from Austria and for any repair here I need to pay huge amount of money so worst case scenario I can use warranty to return it…
Thanks in advance!
by TheBawzy
7 Comments
The rub is so small, no need for a big repair here. You can go out and ride it like it is, and chances are that the rub will disappear after some use.
That’s basic brake calliper alignment.
Also, check the calliper bolts and axle if they’re tightened correctly, take it for a spin and the problem should go away
The rotor needs a little trueing is all. A lot of new bikes are like this. Also there is a good chance the caliper will need to be realigned as well. Both are small jobs.
Loosen the caliper bolts then tighten it while pulling on the levers. Although its not an unusual sound given that your pads are basically brand new.
Slight brake rub will go away once some pad material is gone, had the same issue and just left it alone and eventually went silent.
As others have mentioned, it’s because your rotors are very slightly out of true. You could spend a few minutes trying to fix it and end up making it worse, or just live with it. There’s a good chance that as the pads wear in, the noise will go away.
Your wheel is clearly turning freely, so the rub isn’t producing enough force to physically slow you down.
I wasn’t going to comment but people here are acting like truing a rotor is some sort of black magic. Step 1: make sure the caliper is centered on the disk. Loosening bolts allows for movement. Step 2: if that doesn’t work use a rotor truing wrench to very gently bend the high spot in the rotor to match the rest. Adjustable wrench can also work. YouTube videos would be helpful as far as techniques that I can’t get into on a text message, but you can definitely do it. Good luck.