front brake disk dampener

All,
there is a rubber dampener (?) wedged in between the front brake disk and the spokes on the front wheel on my 2010. I'm building a second set of wheels and I'm wondering whether
it is necessary or just a noise dampening device (#11 on fiche)?
Thanks,
Frank

https://i.servimg.com/u/f34/15/34/26/07/ya061011.gif

Yes that is where you get all your low end power from. If you add a 2nd one your front wheel will jump up and never come down. Don't know how Yam did it but boy is it cool...

I haven't had mine on there for several thousand miles, now, without trouble. :)

Tammy wrote:

Yes that is where you get all your low end power from. If you add a 2nd one your front wheel will jump up and never come down. Don't know how Yam did it but boy is it cool...

Thanks for this exceptionally helpful reply

YZEtc wrote:

I haven't had mine on there for several thousand miles, now, without trouble. :)

Thanks YZEtc. After calling the third shop in the area I found out that it indeed is a dampener for potential rattle coming from the floating front disk - so not really necessary - especially not on trails which is where I will mainly use the second wheel set.

My way of say`n you don't need it...

Tammy wrote:

My way of say`n you don't need it...

Thanks, no offense taken.

rattle coming from the floating front disk ..


Nope that's not a floating disk... Maybe if you beat it with a hammer for a bit it will be LOL..
Really don't know Y that put it on, but it's not cuz it's a floater..

Tammy wrote:

rattle coming from the floating front disk ..


Nope that's not a floating disk... Maybe if you beat it with a hammer for a bit it will be LOL..
Really don't know Y that put it on, but it's not cuz it's a floater..

"Stainless 250mm fully floating front disc brake with "wave style" rotor is squeezed by a twin piston Nissin caliper fitted with lightweight 27mm aluminum pistons. Nissin front master cylinder features an 11mm piston. Braking performance is excellent. Sintered metal pads are used"

Uhh... I'm pretty sure the caliper isn't floating. The disc itself is a floating disc, but floating doesn't mean rattling. It floats in that it can expand freely as it heats up due to the way it's mounted to the wheel (those little round things). If it's rattling, I would say you have some serious problems.

Of course I could be missing something :)

picard wrote:

Tammy wrote:

rattle coming from the floating front disk ..


Nope that's not a floating disk... Maybe if you beat it with a hammer for a bit it will be LOL..
Really don't know Y that put it on, but it's not cuz it's a floater..

"Stainless 250mm fully floating front disc brake with "wave style" rotor is squeezed by a twin piston Nissin caliper fitted with lightweight 27mm aluminum pistons. Nissin front master cylinder features an 11mm piston. Braking performance is excellent. Sintered metal pads are used"

Quote :

The disc itself is a floating disc, but floating doesn't mean rattling. It floats in that it can expand freely as it heats up due to the way it's mounted to the wheel (those little round things). If it's rattling, I would say you have some serious problems.

Floating discs usually rattle. The exceptions where they are quiet is when they are rubber damped, like the WRR. Remove the rubber and check out 'those little round things' up close.

I'm still trying to figure what type of liquid is being used to float metal. Excited rider?

Sorry guys no Floating discs on the WR..
I had them on my race bikes and I sold lots of them and what we have are good old none floating discs..

Tammy wrote:

Sorry guys no Floating discs on the WR..
I had them on my race bikes and I sold lots of them and what we have are good old none floating discs..

Beg to differ on that issue. A floating disk is no more than a two part disk with the center section bolted to the hub and the outer contact section free to expand to some degree to avoid warpage issues. The WRR uses a front disk just like most others I've encountered--EBC knows brakes and I think you will find their rotor very similar to the WRR--outside of their propriitary mounting (rivet) system that is
http://www.ebcbrakes.com/motorcycle_brake/sdrive.shtml

Akasy wrote:

Tammy wrote:

Sorry guys no Floating discs on the WR..
I had them on my race bikes and I sold lots of them and what we have are good old none floating discs..

Beg to differ on that issue. A floating disk is no more than a two part disk with the center section bolted to the hub and the outer contact section free to expand to some degree to avoid warpage issues. The WRR uses a front disk just like most others I've encountered--EBC knows brakes and I think you will find their rotor very similar to the WRR--outside of their propriitary mounting (rivet) system that is
http://www.ebcbrakes.com/motorcycle_brake/sdrive.shtml

Akasy you are absolutely correct. So is Mr. Metal (discs are floating). And yes they rattle a little.

deerHater wrote:

I'm still trying to figure what type of liquid is being used to float metal. Excited rider?

Nobody else noticed that dampening != damping?
Usually see that in suspension adjustment discussions.

Sorry, I'm obviously not helping either....

Nice vid, go back to 0:46
We don't have EBC disks...

From Yam's site..
Wave brake rotors front and rear, including a large 250mm front disc, reduce unsprung weight and provide excellent performance.
Now if we had floating disks Yam would be more then happy to tell us about them cuz that would add to the bike...

Sorry guys but we do NOT have floating disks that you will find on any bike that has real floating disks like on a TE250..
They may float on the hub but that is not the same as a true floating disk that moves side to side...

Tammy wrote:

Nice vid, go back to 0:46
We don't have EBC disks...

From Yam's site..
Wave brake rotors front and rear, including a large 250mm front disc, reduce unsprung weight and provide excellent performance.
Now if we had floating disks Yam would be more then happy to tell us about them cuz that would add to the bike...

Sorry guys but we do NOT have floating disks that you will find on any bike that has real floating disks like on a TE250..
They may float on the hub but that is not the same as a true floating disk that moves side to side...

Never said we have EBC just a good site for seeing a floating disk in two pieces--which makes it a floater.
TE250 does not have a floating disk on the front--it has a floating caliper with fixed disk, big difference. It does have a floating disk on the rear.
All that makes a disk floating is two parts--allowing the part in contact with the pads to expand and contract without being locked to the hub.
WRR does not have floating caliper. It does have a floating front disk.
http://www.pjsmotorcycles.com/new_vehicle_compare.asp?veh1=128276&veh2=128276&CatDesc=Motorcycles&

Could you please do some reading and understand the subject matter before you post a reply? People often reference forums for knowledge, and your posts are completely wrong and absurd.

We absolutely DO have a floating disc up front. We do NOT have a floating disc in the back. Take a look at your front disc. See those round metal pieces between the two pieces of the disc? Those are what makes the front disc a floating disc. As the metal heats up and expands, that "floating" connection allows it to separate as needed, eliminating any warping or stress on the metal.

Now take a look at your rear disc. See how it's solidly mounted to the wheel? Not floating.

Please leave technical discussions to those who are knowledgeable on the subject.

Thanks.

Tammy wrote:

Sorry guys but we do NOT have floating disks that you will find on any bike that has real floating disks like on a TE250..
They may float on the hub but that is not the same as a true floating disk that moves side to side...

Tammy wrote:

Sorry guys no Floating discs on the WR..
I had them on my race bikes and I sold lots of them and what we have are good old none floating discs..

Can't explain why Yamaha USA did not put it in the press release but here are others that did so

http://www.totalmotorcycle.com/photos/2008models/2008models-Yamaha-WR250R.htm about 2\3 the way down 'Stainless 250mm fully floating front disc brake with "wave style" rotor is squeezed by a twin piston Nissin caliper fitted with lightweight 27mm aluminum pistons. Nissin front master cylinder features an 11mm piston. Braking performance is excellent. Sintered metal pads are used"


http://www.motorcycle.com/classifieds/yamaha/2010-yamaha-wr250r-MC093480041BF.html again about 2\3 way down
"Stainless 250mm fully floating front disc brake with "wave style" rotor is squeezed by a twin piston Nissin caliper fitted with lightweight 27mm aluminum pistons. Nissin front master cylinder features an 11mm piston. Braking performance is excellent. Sintered metal pads are used"

Yamaha Canada does acknowledge the floating disc
http://www.yamaha-motor.ca/products/products.php?model=3256&section=ft&group=M

"Stainless 250mm fully floating front disc brake with "wave style" rotor is squeezed by a twin piston Nissin caliper fitted with lightweight 27mm aluminum pistons. Nissin front master cylinder features an 11mm piston. Braking performance is excellent. Sintered metal pads are used"

Guys... there is no reason to post lots of links to justify a FACT. The front disc is a floating disc. It's obvious if you just look at it. Come on.

Akasy wrote:

Tammy wrote:

Nice vid, go back to 0:46
We don't have EBC disks...

From Yam's site..
Wave brake rotors front and rear, including a large 250mm front disc, reduce unsprung weight and provide excellent performance.
Now if we had floating disks Yam would be more then happy to tell us about them cuz that would add to the bike...

Sorry guys but we do NOT have floating disks that you will find on any bike that has real floating disks like on a TE250..
They may float on the hub but that is not the same as a true floating disk that moves side to side...

Never said we have EBC just a good site for seeing a floating disk in two pieces--which makes it a floater.
TE250 does not have a floating disk on the front--it has a floating caliper with fixed disk, big difference. It does have a floating disk on the rear.
All that makes a disk floating is two parts--allowing the part in contact with the pads to expand and contract without being locked to the hub.
WRR does not have floating caliper. It does have a floating front disk.
http://www.pjsmotorcycles.com/new_vehicle_compare.asp?veh1=128276&veh2=128276&CatDesc=Motorcycles&

Edit to add "WRR does not have floating caliper."
They do float

Mr.Metal wrote:

Could you please do some reading and understand the subject matter before you post a reply? People often reference forums for knowledge, and your posts are completely wrong and absurd.

We absolutely DO have a floating disc up front. We do NOT have a floating disc in the back. Take a look at your front disc. See those round metal pieces between the two pieces of the disc? Those are what makes the front disc a floating disc. As the metal heats up and expands, that "floating" connection allows it to separate as needed, eliminating any warping or stress on the metal.

Now take a look at your rear disc. See how it's solidly mounted to the wheel? Not floating.

Please leave technical discussions to those who are knowledgeable on the subject.

Thanks.

Tammy wrote:

Sorry guys but we do NOT have floating disks that you will find on any bike that has real floating disks like on a TE250..
They may float on the hub but that is not the same as a true floating disk that moves side to side...

From 1980 to 2004 I worked as a paid Motorcycle Teck, all of the classes I took where OEM not the internet.

floating disc. A true floating disc will move side to side to meet the pads. Does the WR have a floating disc I guess you can say yes cuz it does float on it's hub but it is not a true floating disc like found on the REAR of a TE250..

As for that EBC vid, that vid only talks about EBC's SD-System.on 0:46 they talked about the Patent of the SD-System so that vid did NOT have any thing to do with the disk on the WR at all and that is a fact...

We can play on the word floating with this but the disk on the WR is not a true "move from side to side freely" floating disk...

Now we are getting somewhere, since you have agreed that it is a floater, I will concur that that it does not move side to side (at least not very much) and is not--correct term--a full floater, like Brembo and others make which have both radial and axial freedom.
Now what is it worth--not much in my opinion. I've installed and used these things on and off since they came out as best as I recall in the early 90's. Never had one warp--but then again I've never had a solid rotor warp either--well not on a motorcycle.
On EBC never said it was on the WRR but you have to admit it is a good video on floating disks.


"From 1980 to 2004 I worked as a paid Motorcycle Teck, all of the classes I took where OEM not the internet.

floating disc. A true floating disc will move side to side to meet the pads. Does the WR have a floating disc I guess you can say yes cuz it does float on it's hub but it is not a true floating disc like found on the REAR of a TE250..

As for that EBC vid, that vid only talks about EBC's SD-System.on 0:46 they talked about the Patent of the SD-System so that vid did NOT have any thing to do with the disk on the WR at all and that is a fact...

We can play on the word floating with this but the disk on the WR is not a true "move from side to side freely" floating disk... "

[/quote]

That may be, it still doesn't mean you know what you are talking about.

I'm sorry, but after your "WRR can smoke a KTM," "DL650 can smoke a DL1000" and "WRR does not have a floating disk brake" statements, I don't assign much weight to anything you have to say.

Tammy wrote:

From 1980 to 2004 I worked as a paid Motorcycle Teck, all of the classes I took where OEM not the internet.