Advice sought urgently!

[Frinksbonkers]

Hi guys,

Whilst riding the other day I noticed a clicking noise coming from the bike whilst braking (fronts)
Then whilst wheeling the bike into the garage and applying the front brake to stop, it made the same clicking/clunking noise. Under further inspection it appears my rotors have at least 2-3mm of rotational play. I know these are floating parts, but I thought they where still solidly held together.

My bike only has 4000miles on it so I don't think that they should be this loose?

Also is the bike safe to ride?

 

[JT]

Hi guys,

Whilst riding the other day I noticed a clicking noise coming from the bike whilst braking (fronts)
Then whilst wheeling the bike into the garage and applying the front brake to stop, it made the same clicking/clunking noise. Under further inspection it appears my rotors have at least 2-3mm of rotational play. I know these are floating parts, but I thought they where still solidly held together.

My bike only has 4000miles on it so I don't think that they should be this loose?

Also is the bike safe to ride?

I think that merits visit to a shop


Sent from my one and only iPhone 5 using Tapa 2 da talk

 

[fredrod]

+1 go to the shop. they are floating but they are not really (floating). If they are moving around like that you have a problem.

 

[JT]

Once there is play you are probably putting to much pressure on whatever is still holding it in place.

Only a matter of time before it gets worse then from worse to o sh1t bad


Sent from my one and only iPhone 5 using Tapa 2 da talk

 

[Nastybutler]

We don't have floating rotors on these bikes. Those are only on high end race bikes, or aftermarket parts. Our rotors are fixed and if there's any movement of the rotor independent of the wheel, you've got a potentially serious problem. Check the bolts that connect them to the wheel and see if any of them are loose, or missing, or have sheared off.

If they are loose, back them all the way out and put some red loctite on them and torque them to spec. If there are missing bolts, replace them, tightening with the same method as if they're loose. If they've sheared off, you might need to take it to a quality mechanic or the dealer to deal with, or if you have a good set of tools, you can try to fix it yourself.

If I'm wrong on any of this advice someone will correct me, I'm sure, but if no one does, I'm not responsible for any work you do to your bike yourself or any injury or death that may result from following my advice.

 

[Frinksbonkers]

All the bolts are tight and nothings loose, the centre part of the disc is fixed to the wheel but the metal rings and friction part of the disc have movement which is resulting in rotational movement. Ill talk it to the shop on tuesday.

 

[FastFreddy]

Sounds like cracked rotors, how could that happen ?

I think someone needs free rotors replaced, you could have died if the rotors had jammed whilst in that state.

 

[FastFreddy]

DON'T ride the bike like that, not even with using just the back brakes, its too risky.

 

[Frinksbonkers]

update: After checking all nuts and bolts where tightened correctly, and seeking advice from the garage, and looking at other identical new bikes, all our discs are the floating type and have a small amount of play in them. The garage checked my brakes and said the noise will be the pads moving about in the caliper under braking.

 

[JT]

good to know. I need to spend some time looking to find what play you are refering to

 

[bleedinblue]

good to know. I need to spend some time looking to find what play you are refering to

Its a Xj6 with ABS...You won't encounter what he is referring to

 

[jfont]

Under further inspection it appears my rotors have at least 2-3mm of rotational play.

I have the same problem. When I brake hard in the lower speeds I get a thunking/knocking sound(from 20mph to a stop). No sound at higher speeds while braking, and no sound induced from sole engine braking.

A good description between floating rotors:
https://www.youtube.com/watch?v=jJPCy2AsULo

And a video of my movement:
motorcycle rotor play - YouTube

This is the only think I can find that would explain the knocking sound on my bike. About to take it into the shop. Did you find out any info on your own?

 

[latony007]

no one else

If no one else is hearing the noise I would say for sure there is something wrong. I have never heard anything braking with my bike. I haven't quite hit a 1000 yet though.