Motorcycle Brake Rotor Button/Bobbin cleaning
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- Опубліковано 5 вер 2024
- This video shows how to clean the Brake Rotor Buttons aka Bobbins. Over time, Brake dust, Dirt and Corrosion can build up between the buttons on Semi-Floating disks causing the rotor to not move freely from side to side. If you have pulsing in the Brake lever and vibration through the bars when braking, don't be so quick to replace your rotors. Try this first.
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You don't need a drill or an impact wrench to perform this, I just used the power tool to speed up the procedure, can you can use a wrench or a socket wrench as well.
Thanks, mate. Might try it this weekend. I don't feel any pulsing through the lever but I definitely feel how the braking isn't consistent at low/mid braking. It's like if the pads have more stopping power at certain positions around the rotor and less at others.
I've got some shaky front braking on my 790 Duke, going to try this. Thanks!
Wow. Simple and effective idea. Thanks
Instead of using bolts and nuts, it's quicker to use an easy out tap. It'll grab the inside of the bobbins and spin them.
The only people I see doing this are'Home mechanics'.I Have been riding bikes for years,Have experienced Drum brakes,Solid rotors,Floating rotors etc.No one I know has ever mentioned about cleaning the rivets/bobbins on floating rotors.EBC web site explains in depth how a floating rotor works..I see you have a KTM.Maybe riding too fast and ABS coming on.I get clicking from mine occasionally when slowing down after a spirited ride...Ride safe.
>EBC web site explains in depth how a floating rotor works.
Yep, its not meant to move.
So does this guy
ua-cam.com/video/hOA5cOrvwRw/v-deo.html
Yeah this is an awful idea. All around just amateur.
I'd spray while spinning, nice vid thanks.
I did off camera, had to hold cam I'm one hand and impact in the other.
@@PRL1290 I thought you might have just worth a mention. 😎
Thanks for the tip....this will be god to have in tool-box-of-tricks ;)
Thanks for this! Cheers!
please dont do this to your bike you will only grind the space larger and create more movement on your rotors
Helpful, thanks.
Excellent work, excellent idea. I would have the rotors removed from the wheel to prevent the brake clean spray or other solvents from damaging the finish on the wheels. Brake clean is very bad for painted surfaces.
Wheels aren't painted they're powder coated
@@tpartridge10 hmmmm...I guess powder coating is more resistant? It hasn't been my experience so far but I guess there are different qualities of powder coating
Brake cleaner won’t harm your wheels. If you’re that worried about it do this right before you wash the bike.
sempre fatto ma uso rigorosamente chiave a tubo manualmente i rotori vanno sbloccati, con il trapano usuri le sedi dei rotori fai solo danni, sgrasso ruoto i rotori manualmente poi lubrifico poco con spray olio PTFE che non fà accumulare le polveri delle pastiglie
Thanks for a great video and tips cheers
@Zzzpip You're welcome and Cheers to you too! I hope this video saves you or someone from buying $$$ Brake Rotors unnecessarily as I almost did.
Can I fix the brake rotor bobbing with only brake cleaner? I don't have a drill which I could use.
A standard socket wrench will work
Is that play on rivets normal?
Yes
They’re not rivets, they’re bobbins. They are designed to be slightly loose so the rotors can move slightly side to side for smooth braking. That’s why they’re called free floated rotors.
All you are doing is grinding the space even bigger so allowing more radial movement and more dirt. I pity the next guy that owns your bike..what other dumb stuff have you done to it?
Absolutely this ^^
Talking shit, they spin freely when new, it's not "grinding" it's removing the build up of crap
Agreed. It is unnecessary. If your rotors aren't warped and you're having chatter or a wobble feeling when you brake it is an axle alignment and/or brake pad alignment problem. This is nonsense.
NEXT OWNERS PROBLEM.
my 1 week old floating rotors give me this chatter during braking, do you think I should clean them assuming it is dirty from the factory or do you think they have too tight spring washers?
What's the backstory? Did you put on new rotors? Or is this a new bike?
@@PRL1290just new rotors and new pads
@@p1t3n6 It sounds like they might be warped. I wouldn't do anything to the rotors since they're new, see if you can return them. Also did you spray them down with brake parts cleaner? most rotor ship with a coating of oil to prevent them from rusting.
@@PRL1290 I did clean them before puting them on.
I dont think they are warped since I can spin the wheel freely.
They can still be warped and spin freely, only way to tell is to measure the run-out (warpage) with a dial indicator. What brand is your rotor?
Don’t do this. You are causing friction that can damage your rotors Instead use simple green to clean your rotor bobbins on a regular basis. Much safer.
any ideas if i cant free them with a bolt and washers. mine are seized solid
It should free them up, because when you tighten the bolt it squeezes the button. If they're really that stuck, try breaking it free by moving the rotor from side to side while spraying brake cleaner.
They dont need to rotate. Leave them alone. The bobbins are for thermal expansion and not to make the disc a 'floating disc'. The floating part of the brakes comes from either the caliper floating or having pistons on both sides which evens the pressure on both sides of the disc.
@@butrint904 so you disagree with this cleaning procedure?
Michael Steven I’ve heard not to do this, but I’m not mechanic, I have a 2005 636 and I can’t rotate mine and I don’t have any issues
@@butrint904 I would say if there is nothing wrong with your brakes (feel wise) leave them alone but for example if 2 or 3 bobbins seize up and the rest are free that may cause wobble which feels like disc warping so the only solution would be to clean them. This is just speculation though because it worked for me but I'm not sure if my actual disc was bent or the stuck bobbins shifted the disc just enough to make my brake lever wobble when braking, in any case cleaning them solved the problem for me.
My bobbins are square sided so this aint working for me, that nut tool just tightens up and wont spin. in fact if tightend to much bobbins will compress and deform . =/
See my comment above.
What can you use on them to keep em loose or leave em dry
Just leave them dry. Do NOT put ANY kind of oil or lubricant on them as it will get on the rotor and pads and ruin your brakes!!
@@cfltitan thanks for feedback,i have just about got the katana back together,used your method worked great they function properly now,when i got the bike they were locked up tight Thanks Again !!!!
@@johnharrison2466 that’s great. Be safe out there
No!!!! Look closely and there are metal shavings dropping between sprays with that liquid. The dirt colour in the liquid as it falls is carbon particles from the higher carbon metal that makes the braking discs. Utter utter madness doing what you're doing.