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jvbruce 12-19-2006 08:14 AM

Re: Floating/Semi Floating/Full Floating?
I think it has something to do with how hard you pull the brake level - and far you fly afterwards. :)

SmokeU 12-19-2006 08:30 AM

Re: Floating/Semi Floating/Full Floating?
My Concours has full sponge brakes.

SRMark 12-19-2006 08:34 AM

Re: Floating/Semi Floating/Full Floating?
It takes a terrible torrent to float a semi.

priday 12-19-2006 08:44 AM

Re: Floating/Semi Floating/Full Floating?
I think it has to do with if the Caliper is fixed, and has pistons on both sides of the rotor, or if the caliper has pistons only on one side, and "floats" on pins back and forth.....

Course, I could be totally wrong. The nomenclature can vary by manufacturer, poster, sobrity, your results may vary, past performance may not indicate future results, with approved credit, plus Tax, Title, and License fees.......


mikenomad 12-19-2006 08:59 AM

Re: Floating/Semi Floating/Full Floating?
I believe it has to do with the rotor mounting.

On full-floating, the rotor can slide side to side to center itself when clamped by the caliper, providing optimal contact of the pads against the rotor.

On non-floating, if the caliper and rotor aren't perfectly aligned, there can be uneven pressure on the inner and outer pads and less-than-optimal contact, so you don't get maximum possible braking force.

acecycleins 12-19-2006 10:05 AM

Re: Floating/Semi Floating/Full Floating?
If you look at conventional rotors that are usually 1 piece. Steel in most cases. Floating refers to the mounting hardware. If you look at a floating rotor you will usually find that there are a series of small "rings" on the bottom or inside of the disc. Those little rings are held in place with springs and can move ever so slightly. Solid disc hold lots of heat when pressed in hard duty. Floating disc have a way to move within the mounting hardware and can distribute heat more evenly allowing for less fade. That's all I have. Hope most of it was accurate enough for the wrenches out there. I know there is lots more on this but it's as direct as I can make it.

saddlebag 12-19-2006 11:25 AM

Re: Floating/Semi Floating/Full Floating?
Very good explanation. I would only add that to see an example of non-floating rotors see Harley Davidson..for the floating type, see just about everything else.

jvbruce 12-19-2006 11:31 AM

Re: Floating/Semi Floating/Full Floating?
It's kind of like a turd. The more fiber it has in it, the higher it floats. Brakes with high fiber content (asbestos, mainly) float more than ones with less.

pdad13 12-19-2006 12:48 PM

And what else floats?
"Very small rocks..."


"A duck."

mscuddy 12-19-2006 12:52 PM

Re: Floating/Semi Floating/Full Floating?
From Winkpedia:

The brake caliper is the assembly which houses the brake pads and pistons. The pistons are usually made of aluminum or chrome-plated iron. There are two types of calipers: floating or fixed. A fixed caliper does not move relative to the disc. It uses one or more pairs of pistons to clamp from each side of the disc, and is more complex and expensive than a floating caliper. A floating caliper (also called a "sliding caliper") moves with respect to the disc; a piston on one side of the disc pushes the inner brake pad until it makes contact with the braking surface, then pulls the caliper body with the outer brake pad so pressure is applied to both sides of the disc.

Floating caliper (single piston) designs are subject to failure due to sticking which can occur due to dirt or corrosion if the vehicle is not operated regularly. This can cause the pad attached to the caliper to rub on

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