Thread: My rotor's fucked. How do I fix the piece of shit?

My rear rotor is warped. There's a section that rubs against the pads. The wheels on the bike still go round and round but it's annoying the shit out of me.

How do I fix this? I tried bending it back with my brute strength but it didn't work. The area affected is about 1/5 of the circumference and off by about 1mm.

I have no actual knowledge...but happened to find this, hope it helps. If you're still stuck, my buddy runs a bike shop in "The SAC ", i can call him tomorrow.
How to fix a bent rotor
Good luck!

Originally Posted by Superstar Punani

My rear rotor is warped. There's a section that rubs against the pads. The wheels on the bike still go round and round but it's annoying the shit out of me.

How do I fix this? I tried bending it back with my brute strength but it didn't work. The area affected is about 1/5 of the circumference and off by about 1mm.

crescent wrench

A good bench vise wood work wonders for this problem.

edit - "wood" ? I no spel gud.

Do exactly as the instructions in NorCal's link describe. A couple adjustable wrenches and a marker are the way to go. If your rotor isn't bent too badly, you should easily be able to fix it.

Muchos Grassy-Ass!

Did it warp from heat or something more conventional like say .... a rock?

Chances are that it may warp again from the heat but do the whole repair anyways and use less brakes . Mine rub a bit but where it rubs changes from the heating and warping.

Originally Posted by NorCalPWDR

I have no actual knowledge...but happened to find this, hope it helps.
How to fix a bent rotor
Good luck!

This site seems to have alot of broken links, I couldn't get to the article, here's another one http://www.utahmountainbiking.com/ Click on the rotor dewarping link at the top left of the page. They're also trying to sell you some tools. I've used a crescent wrench enough times on rotors to consider the truing wrenches, they look pretty cool. Could never justify the cost of the trueness gauge though.

At any rate, it's a good tech article and it looks like there's more good info here as well.

Personally, I just use a crescent wrench, pushing and pulling until the rotor stops rubbing. Hope you got it worked out.