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Old 07-17-2004, 01:49 PM   1 links from elsewhere to this Post. Click to view. #1 (permalink)
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Default What is Full-Floating?

What is Full-Floating?Full floating rotors, such as were originally conceived, were designed to reduce the tendency towards thermal stress induced distortion due to uneven thermal expansion under load. Prior to the introduction (by Brembo) of this design, brake rotors in the motorcycle industry were simply round discs bolted solidly to the wheel. You may remember if you've been around long enough, the rotors on the early CB750 and Z-1's were nearly 7mm thick and weighed accordingly. This was in effort to keep them from warping. Now days, the only road bikes coming through with solid mount (front) brakes are the Cruisers and budget bikes.

Today's Sportbikes abound with trick features and hardware in every nook and cranny. Brakes too. The brake rotors on them work remarkably well considering their mass-produced (read: stamped) manufacturing process. These are technically semi-floaters as the outer SS blade is nearly bolted solid to the carrier via the stamped stainless steel rivets.

True full-floaters move on the carriers, this allows them to self-center in the caliper for reduced brake drag and "float" unimpeded for unrestricted expansion and contraction during repeated thermal cycling. The only serious down side is a bit of rattle that reminds you these are indeed full-floaters.

Does all this guarantee they won't distort under severe duty conditions? No, unfortunately, there's precious few guarantee's these days. But they do perform as advertised in improving overall braking performance while significantly reducing that distortion tendency.

BTW: All Superbikes, GP machines and the like unanimously have full-floating brake rotors

http://www.ferodobraketech.com/tech/floating.html
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Old 07-17-2004, 07:36 PM   #2 (permalink)
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Another good post - I'll make it a sticky for a while, too.

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Old 02-04-2006, 01:18 AM   #3 (permalink)
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I had full floaters on my 94 900SS/CR. The bike had great brakes, but it sounded like my whole front end was gonna fly apart whenever I hit a bump in the road. I could hear them rattle over the Carbon Tech pipes and dry clutch. I'd stay away from full floaters. I don't think most newer bikes need them, especially on the street. If my GSXR and Duc had any better brakes ( I only use 1-2 fingers), I 'd end up with my bike on top of me instead of the other way around.
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Old 02-04-2006, 08:13 AM   #4 (permalink)
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Holy thread revival, jeff!!! I wouldn't recommend the habit.


anyway, I have full floaters on my 600 and notice no ill effects, other than a little rattling noise.
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Old 04-13-2006, 01:39 PM   #5 (permalink)
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Floating rotors are just a cool design to allow for better thermal expansion (stress) with out comprimising strength.

Sweet.
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Old 11-23-2006, 02:39 PM   #6 (permalink)
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good post too bad we don't have pics for the difference in semi and full floating
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Old 07-25-2008, 06:19 PM   #7 (permalink)
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Good blog entry about floating.
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Old 05-10-2011, 11:01 PM   #8 (permalink)
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good info...
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Old 05-11-2011, 04:28 PM   #9 (permalink)
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holy 3 year thread resurrection...
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Old 05-12-2011, 12:08 AM   #10 (permalink)
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Back from the dead. Twice.
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Old 12-19-2012, 05:34 AM   #11 (permalink)
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An axle design where the vehicle weight is supported by a spindle and wheel bearing assembly.
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Old 12-24-2012, 06:41 AM   #12 (permalink)
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I think it is an axle design where the vehicle weight is supported by a spindle and wheel bearing assembly.
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Old 12-24-2012, 07:30 AM   #13 (permalink)
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what?

this thread is about full floating brake rotors, and all axle designs support the vehicles weight on some sort of spindle/bearing.
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Old 12-25-2012, 05:16 PM   #14 (permalink)
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Old 03-22-2013, 08:21 AM   #15 (permalink)
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An axle design where the vehicle weight is supported by a spindle and wheel bearing assembly.
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