HEADS UP!!!

Site upgrade in progress... Core site functions are working, but some non-critical features/functions will be temporarily unavailable while we work to restore them over the next couple of weeks.

Please post any bugs you encounter, but before you do, check to see if it's already listed.

Thanks for your patience while we work to improve the community.

Sign in to follow this  
Followers 0
RMK800

Rear disc brake turned black

4 posts in this topic

I'm an idiot. I was following my wife tonight on some fairly steep long trails. Anyways, she was going too slow, so I was pulling in the clutch and braking. So I decided to cut the engine put it in natural and work the front and rear on the way down.

I obviously worked the rear too much because they stopped working and turned the disc black.

As I let them cool off the rear brakes did come back, we just got home at dark. I don't think they are as good as before.

What are my options? New disc? New pads? Can you do something to get the disc working again without getting new parts?

Thanks for the help.

Share this post


Link to post
Share on other sites

Maybe next time use more front brake when going down hills. People are scared to endo but if you sit at the back you shouldn't. Also if you use too much back brake you will skid.

And maybe just try new pads

Share this post


Link to post
Share on other sites

The disc has likely suffered some serious integrity issues due to overheating. As I recall from high school metal shop, if it slowly cooled, then it is probably "softer" than when it came from the factory...

I'm no expert, but this is one area I would NOT compromise on. Go buy a new disc, new pads, inspect the caliper (I would even SERIOUSLY consider overhauling that, $20.00 for a kit, no brainer for sure), replace the brake fluid and bleed the system.

Might set you back a little, but a much better choice than a serious accident...

Share this post


Link to post
Share on other sites

Maybe next time use more front brake when going down hills. People are scared to endo but if you sit at the back you shouldn't. Also if you use too much back brake you will skid.

And maybe just try new pads

I do hear what your saying about more front brake... But I had an experience last year that made me think that I should have a little more braking with front and rear... I was coming down a trail last year.. And coming around a corner and side by side was in my lane.... I hit the front brakes hard...bike washed out and I went down and handle bars went into the ground and thus a broken left wrist. I try to do 60 front and 40 back...and obviously use the engine as much as possible when applicable . I obviously didn't use those ratios tonight.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0