Single rotor/radial caliper question...

[Ducatl]

i was thinking more about the lower on the fork with no caliper.

The single caliper bikes had a mount for the caliper on the side without.

[TAftonomos]

Machine it off, to save the weight.......

[weemonster]

The single caliper bikes had a mount for the caliper on the side without.

not all of them.

[weemonster]

Ok so my m600 doesnt have the same kind of power. But i have a single disc with normal caliper and a master meant for 2 discs..i also have kevlar  lines.

It makes the braking awesome.  I'd guess that the lighter rotor and the radial caliper/master would more than make up for the powser difference on your bike.

you won't need to worry about it being under braked.

[Drunken Monkey]

My seat of the pants experiences owning a Duke II (conventional master, 300 lbs, single disk) and an m900 (400 lbs, dual SS full-floaters) tells me a few things:

Stopping power is more than adequate with both.
Neither one has every shown any evidence of fading.
Much lighter braking feel (one 1/2 finger) on the dual disk set up than on the single disk(2-3 fingers)
More initial bite and pressure applied is far more linear with the dual disk set up.

Both have the exact same calipers, pads, rotor diameters and brake lines.

So at least from what I can tell, a single disk will stop you just fine, but I'd miss that light and linear feel I get from the dual disk set-up.

However, I am comparing full floaters to semi (i.e. NOT ) floating disks and the masters are different.

I am planning on getting an iron full floater for the Duke and if you don't mind waiting a few weeks I could give you a true apples to apples comparison (well, except for the masters) once I've set it up.

Personally, I think the weight is minor (especially with braketech rotors) and while it is unsprung weight it's not like it's rotating (much) mass. And I really prefer the feel with the dual rotors.

[TAftonomos]

Thanks Monkey!

3.5lbs of rotating weight to just take off is huge (and cheap).  When you are going for as low as possible, EVERY little bit makes a difference (ounces here and there).  I don't have a caliper at the moment, but machining the wheel, fork lower, no caliper, no second brake line, no rotor bolts, no rotor....I'm guessing ~10lbs total.

I'm looking at every angle I can, and currently (an anxiously) awaiting an email back about a monocoque tail section w/dummy fuel tank to rid the subframe and heavy tank from the bike.

[Drunken Monkey]

Te Nada.

Just promise me you won't go with a non-floating single front disk.

Or better yet, go with one of these so I can be truly jealous

[ducpainter]

FWIW...I've seen fairly light track only bikes overheat single brake set ups.

The bikes stopped fine until the caliper and rotor started smoking.

[♣ McKraut ♣]

Te Nada.

Just promise me you won't go with a non-floating single front disk.

Or better yet, go with one of these so I can be truly jealous

hmmm....i think i was holding one of those the other day in a_m's garage...  as if he needs even *more* bling on his 900

[Drunken Monkey]

FWIW...I've seen fairly light track only bikes overheat single brake set ups.

The bikes stopped fine until the caliper and rotor started smoking.

^^^ This is what scares me the most about a single disk set up. Even the best single disk isn't going to shed heat as well as a dual disk.

[foggy123]

Works for Buell.   

[Drunken Monkey]

Works for Buell.   

Yeah but the surface area on those crazy perimeter brakes is way more than on a conventional disk.

Surface area (and a few other minor factors) = Heat shedding ability

[Raux]

go up to the SBK 330 disk

[TAftonomos]

CMC for me...  I need to speak with a brake dude tomorrow.

[ducpainter]

Yeah but the surface area on those crazy perimeter brakes is way more than on a conventional disk.

Surface area (and a few other minor factors) = Heat shedding ability

I don't believe they create as much heat as a single Brembo to start with.

Brakes have to work to make heat.