Floating Rotor's????

[DavesRepsol]

Just so I understand this correctly, maybe one of you guys can help me out here, Honda Stealership says our Repsol's have floating brake system, I dis agree with this and here is why. One of the guy's who went with us to Tail of the Dragon recently has a Aprilia and his front rotor's actually float( you can wiggle them side to side) they feel loose, but are grooved on the back where they catch when the brakes are applied. Now that to me is a floating brake system.

You may can see enough of his front rotor here in this pic to see what I mean(3rd bike from the left)
http://www.repsolforum.com/gallery/showimage.php?i=949&original=1&c=member&imageuser=354

[tnine]

:confused2: Interesting :confused2: I don't happen to know much about this.. Interested to see what others might know..
In other words......BUMP BUMP!!

[Jacobs Dad]

:confused2: Interesting :confused2: I don't happen to know much about this.. Interested to see what others might know..
In other words......BUMP BUMP!!

:stupid: I don't have any answers either. :D

[jquick]

Just so I understand this correctly, maybe one of you guys can help me out here, Honda Stealership says our Repsol's have floating brake system, I dis agree with this and here is why. One of the guy's who went with us to Tail of the Dragon recently has a Aprilia and his front rotor's actually float( you can wiggle them side to side) they feel loose, but are grooved on the back where they catch when the brakes are applied. Now that to me is a floating brake system.

You may can see enough of his front rotor here in this pic to see what I mean(3rd bike from the left)
http://www.repsolforum.com/gallery/showimage.php?i=949&original=1&c=member&imageuser=354

BK and i discussed this in laguna seca, the dealer claims that they float but when you wiggle them they dont. im thinking that honda claims it but changed their minds about making the rotors float when it was time for production. :confused2:

[tnine]

BK and i discussed this in laguna seca, the dealer claims that they float but when you wiggle them they dont. im thinking that honda claims it but changed their minds about making the rotors float when it was time for production. :confused2:

Can/ Do they do that?? Why is it, the more I learn about my Repsol, the more I learn about Honda being sketchy?? I love the company and promote their products, but geez man.... Stop teasing me... Floating brakes, limited production, this many HP....etc.....:mad:

[jquick]

Can/ Do they do that?? Why is it, the more I learn about my Repsol, the more I learn about Honda being sketchy?? I love the company and promote their products, but geez man.... Stop teasing me... Floating brakes, limited production, this many HP....etc.....:mad:

im sorry bro... honda claims it has floating but we have the bikes and we notice it differently. alot of manufacturers claim things but sometimes dont stick with their words.

[Repsol Robert]

Our bikes definitely do have floating rotors...the level of float is microscopic, but indeed they are floaters.

I was at the track yesterday and some rotors do have a pronouced float, supposedly to further reduce friction...especially on a RS125 I was checking out yesterday. You'd think it was broken.

Honda doesn't change their mind on things like this. Imagine the waterfall effect of changing one thing late in the production facility design...it trickles down into so many other things...these things are all solidly decided before the production line is built for the new models.

RR

[DavesRepsol]

Our bikes definitely do have floating rotors...the level of float is microscopic, but indeed they are floaters.

I was at the track yesterday and some rotors do have a pronouced float, supposedly to further reduce friction...especially on a RS125 I was checking out yesterday. You'd think it was broken.

Honda doesn't change their mind on things like this. Imagine the waterfall effect of changing one thing late in the production facility design...it trickles down into so many other things...these things are all solidly decided before the production line is built for the new models.

RR

MICROSCOPIC must be the key word, becasue my rotors dont budge (side to side) I do know what you mean about thinking they are broken because when I felt the rotor's on the Aprilia I was like OMG, You would think they would rattle going down the road without the brake on.....

I think Honda solidly decided to lie.....lol

Although now that I think about it seems like the guy at the stealership said "floating calipers" but that makes even less since to me???:confused2::weirdface:

[diel11]

Big difference between floating and full floating. Floating ones will move but not freely. Full floating make all kinds of rattles and you can move them with your fingers. Actually, if you try with your hand, you can see the Honda ones move. Old racing thing we did back in the day was removing the wave washer or flattening the rivet that made the rotors floating. Then they became full floaters and you didn't have to go out and buy more expensive units. I did this to my 2003 750 and it works great, you just have to get used to the rattling they make anytime you hit a bump or just move the bike. The coolest thing about having full floaters is they reduce brake drag. If you notice when you spin your front tire while suspended it will usually turn just a bit and stop. With the full floaters that will not happen, the tire will continue to rotate for a while longer. This of course is another trick the top speed guys use.

[Big Kahuna]

Diel11 is as usual, 100% correct. :)

No false advertising here, just a different degree of "float."

My rotors from CTSmoto are full floating, you can wiggle them with your fingers and they do make noise was you ride. Takes a little getting used to.

If you truly want full floating rotors, Mike at CTSmoto can convert them for you.

[Jacobs Dad]

We need to change DIEL's subtitle to something like "go-to-guy" or "the wiz" or "old fart, but he knows it", or "moto-head extrordinaire".

:You_Rock:

[diel11]

"old fart", that's awesome! too bad I am only 35.

[TX Repsol]

My rotors from CTSmoto are full floating, you can wiggle them with your fingers and they do make noise was you ride. Takes a little getting used to.

And when again can we expect these rotors to hit the market???

[hondapowered]

the bikes built by the owners specificaly drawn to this website are gonna have some extreme parts at the rate we are going :p

[tnine]

:ninja::ninja: We need a "professor" smiley so I can use it. For now, you get the ninja's.:ninja::ninja: You guys are brilliant...

[DavesRepsol]

Big difference between floating and full floating. Floating ones will move but not freely. Full floating make all kinds of rattles and you can move them with your fingers. Actually, if you try with your hand, you can see the Honda ones move. Old racing thing we did back in the day was removing the wave washer or flattening the rivet that made the rotors floating. Then they became full floaters and you didn't have to go out and buy more expensive units. I did this to my 2003 750 and it works great, you just have to get used to the rattling they make anytime you hit a bump or just move the bike. The coolest thing about having full floaters is they reduce brake drag. If you notice when you spin your front tire while suspended it will usually turn just a bit and stop. With the full floaters that will not happen, the tire will continue to rotate for a while longer. This of course is another trick the top speed guys use.

Thanks Diel, I knew someone could explain it.....+ it gave BK a chance to rub it in about his Rotors again...:D:D

[Jacobs Dad]

Thanks Diel, I knew someone could explain it.....+ it gave BK a chance to rub it in about his Rotors again...:D:D

Look Daves being a :postwhorenana: again!!!!

[Big Kahuna]

Thanks Diel, I knew someone could explain it.....+ it gave BK a chance to rub it in about his Rotors again...:D:DHey, at least I didn't post any pictures of them this time. :weirdface:

[DavesRepsol]

Hey, at least I didn't post any pictures of them this time. :weirdface:

Well you should...those are freaking awesome Rotor's.....:D

[ZZGIXXER]

MICROSCOPIC must be the key word, becasue my rotors dont budge (side to side) I do know what you mean about thinking they are broken because when I felt the rotor's on the Aprilia I was like OMG, You would think they would rattle going down the road without the brake on.....

I think Honda solidly decided to lie.....lol

Although now that I think about it seems like the guy at the stealership said "floating calipers" but that makes even less since to me???:confused2::weirdface:


the rotors with time become looser and looser....the bikes when they come out of the factory are pretty tight. i dont have to worry about float rotors...most of the bikes now adays come with it. i have a suzuki and my rotors are very loose (stock ones).....i was thinking about changing them....they are loose but even Yoshimura shop(Coroan,Ca)...they mentioned that i did not need to change them....that's the way they supposed to be....well that was 5 years ago...i still have them.....and they still brake on a dime. if you keep for bike for a long time and you ride hard and brake hard....rotors will become loose with time.

[DavesRepsol]

BK....now that the new year is upon us, any word yet from Mike @ CTS about the rotor's???

[Nakkers]

I got a message back from mike saying rotors for the 07 should be ready around April , I can't wait :cool:

[Big Kahuna]

Yeah, he's in the new shop and everything seems to be moving along nicely!!! :) I wanna get a set for my 900, but might have to wait even longer. :(

[fredie]

yes my front disks move . side too side a few milimetres:p

[DavesRepsol]

Fredie, I think more than your front disks have moved..............:evilgrin:;)
yes my front disks move . side too side a few milimetres:p

[MeanMachine]

Th term "Floating Rotors" doesn't mean how much it physically moves. Its a term that designates the rotors attachment method, not meaning that it should feel loose.

Standard brake rotors are cast in a single piece and bolt DIRECTLY to the wheel or drive plate. But this makes them very susceptible to vibration, especially on a bike. Floating rotors are cast in two pieces (the rotor and the carrier). The carrier is bolted directly to the wheel and the rotor is attached using "float buttons". This allows some movement (even if you can't feel it with your hand) and allows the rotor to move laterally independently of the carrier, greatly reducing pulsing and vibration. It also allows the rotor to expand and contract under high thermal loads independently of the carrier which helps reduce rotor warping since they are not bolted directly to the wheel and are allowed some freedom during expansion/contraction.

The buttons (round rivet-like hoops) you see between your rotors and the center carrier are what makes them floating, not only by definition, but function as well.

In short, yes, our bikes have floating rotors. :D

[jquick]

Th term "Floating Rotors" doesn't mean how much it physically moves. Its a term that designates the rotors attachment method, not meaning that it should feel loose.

Standard brake rotors are cast in a single piece and bolt DIRECTLY to the wheel or drive plate. But this makes them very susceptible to vibration, especially on a bike. Floating rotors are cast in two pieces (the rotor and the carrier). The carrier is bolted directly to the wheel and the rotor is attached using "float buttons". This allows some movement (even if you can't feel it with your hand) and allows the rotor to move laterally independently of the carrier, greatly reducing pulsing and vibration. It also allows the rotor to expand and contract under high thermal loads independently of the carrier which helps reduce rotor warping since they are not bolted directly to the wheel and are allowed some freedom during expansion/contraction.

The buttons (round rivet-like hoops) you see between your rotors and the center carrier are what makes them floating, not only by definition, but function as well.

In short, yes, our bikes have floating rotors. :D



thanks for the info! no one could have clearly explained it better.

[REPSOL499]

any rotor that is a 2 piece as in carrier 1 piece and friction surface another is classified as floating. the purpose of this has nothing to do with alignment but does effect growth, they are designed to keep the heat in the friction suface from migrating unevenly into the carrier and keeping the heat uniform on it, it does allow for less stress under heat distortion which obviously is a factor to deter warping, but usually warping is due to the rate in which the friction surface cools, more or less float is directly related to the button design separating the friction surface from the carrier, i use brembo and brake tech rotors depending on conditions and find the new pateted design brake tech is useing to be pretty unique in the way that they generate no force onto the buttons like the other 95% of the manufactures out there making for better braking from minimum floating effect