New to me bike. Brakes- Shimano SLX. Pads- Shimano G03S Resin. Rotors- Shimano SM-RT64-M.
These are on the front wheel. Front pads seem to barely be touching the rotors, thus the weird wear pattern. Rear pads seem to be fine. Would love to know if something needs to be adjusted before adding new pads.
Forgot to add- Everything is stock to my knowledge. 2022 Rocky Mountain Element Alloy 50
Thanks everyone for your help (except for the random guy that roasted me for no reason)! I’ll try and take the spacer out and get new bolts to see how that goes! You all rock. My first year really getting into MTB and posting in here has been super helpful.
by Leather-Cod-6782
20 Comments
Looks an awful lot like the rotor is 20mm smaller than the caliper is spaced. Need more info to be sure…
Rotor size too small? Incorrect caliper mount?
Rotor too small (180 where you need 200, for example)
That or you need to remove the spacer from under the caliper
Please show a picture of mounted calipers and brake disc. Either the disc is too small or the spacer wrong, may be either, depending on the way you see it.
I have a fork where I had to use the 140mm caliper adapter setting for 160mm rotors.
Usual suspects when this happens in no particular order or closely scrutinised against your photo
2 pot pads in 4 pot calipers
Rotor too small
Wrong mount
Probably need to flip the adapter 180 degrees.
Show us the caliper!
Some newer forks are spaced for a native 180mm rotor, so no adapter needed to run 180, and the original owner essentially adapted it to a 200mm rotor. You could just take the adapter off, or run a 200mm rotor.
It means the rotor is too small
Either the rotor is too small or your adapter is too big.
[deleted]
I’d start by removing the spacer. Whatever it is make sure you don’t go over the bars once you fix it.
One or the other, your rotors are too small or your alignment is way off. Check with your shop.. easy fix:)
Rotor to small
Get rid of the spacer. You’re making the caliper want to accept a 200mm rotor. That fork will naively run a 180mm rotor without spacer. Problem solved.
https://preview.redd.it/z1hi1xlae2kh1.jpeg?width=1863&format=pjpg&auto=webp&s=abfd0c544082df191ee972afa42be242540dd870
Remove that
lol it’s a wonder you didn’t die! Who installed this for you? Would go talk to the shop about their negligence.
You have the wrong size rotors or the wrong sized caliper bracket. If it was my call, I’d get some larger rotors.
Incorrect caliper mount! I had the same issue, since I upgraded to a different fork and used the same mounts.
I ended up putting a few washers on one side of the mount to raise one side slightly higher to make the contact patch make more contact!