Rotor differences?

[junior varsity]

iirc the 5 spokes are lighter than the 3's but I got no numbers to go with that, but I know RichD had equipped the newer 3 spoke on his SS (which originally also had 3-spokes) because the newer 3-spokes are  tapered by the rim rather than at the hub, making the moi less because there would be less mass out at the edge - i believe they were also lighter, but didn't ask him if he had weighed them.


if you look around you may find a set or individual forged alu 5-spokes or cast/forged mag 5-spokes - you may have to get one used off eBay and go to the likes of Motowheels or Yoyodyne to acquire a matching rear wheel (or front wheel, vice-a-versa)

[junior varsity]

...or I don't get too excited about something that isn't available for my bike (or theOP's for that matter).

It is available in 320 6 bolt and 5 bolt, what do you have?

See Post Below for part numbers (300xx) for pretty much all modern Ducati models except the oddball multistrada or wee-brakes of the S2R800/695/SC, etc.

[junior varsity]

Brembo T-Drive for 6-bolt wheels, 320mm diameter (30055) here (Ducati 916-996-998-748, M600-900, M620-1000, S2R1000, S4, S4R, various Bimota and Aprilia etc etc)

Brembo T-Drive for 5-bolt wheels, 320mm diameter (30068) here (Ducati 848-1098-1198, 749-999, S4RS, M1100S, SF)

Brembo T-Drive for Hypermotard/Monster 1100 (30071) here




Those links are to OPP, but you can have your local dealership order them for you through Yoyodyne or TAW, or call up the good folks at Desmoworks or Motowheels and they'll do it.

[erkishhorde]

Ooh, sexy. $800 is a lot. Is that a typical price for rotors? I haven't researched at all so I have no idea.

[junior varsity]

High but not unreasonable. Carbon rotors go for 3k (braketech's future pricing and sicom) avg price is between 5-650.

[Speeddog]

Have to say, that T-drive looks very much like 1990's HRC rotors, except the rotors aren't vented.

[junior varsity]

Which ones is those? Got a pic?

I understand the price discrimination from the regular HP rotors but that better come down to the normal 660 when they are done with the conventional design to sell these

[Speeddog]

They're moto-porn. 

I'll get a pic tomorrow.

[Blue]

So, is anyone using the snowflake (#3) rotor on their scoot?  I did a bit of searching and found some posts regarding the aluminum carriers warping easily due to heat.  Anyone?

I have been thinking about converting my rotors (#2) to full floating with the ol' hammer and socket method.  I tried turning the buttons the other day and some turned easily, some not so much.  So, if they have to come off for cleaning it may be time to float them as well...

Speaking of floating rotors, any use these buttons off of the MotoWheels website?
SPIEGLER "Free Floating" Brake Rotor Button: 5mm
They say you could remove a 0.5 pounds of unsprung weight with just these buttons replacing the stock steel buttons.  Anyone?

[junior varsity]

i've not used those (just decided to replace the rotors altogether) but I've seen rotors with STM buttons and TPO buttons as well.

[Speeddog]

AFAIK, all Monsters '02 - '05 or so used the snowflake rotors.

Some bikes developed warped rotors, some didn't.
From what I saw, it bore no correlation to how the bikes were used.
Some folks have had success cleaning the buttons to 'cure' a warped rotor.
Others, an aggressive cleaning of the working surface to remove the pad deposition layer seems to do it.
And others have 'floated' the OEM buttons or installed aftermarket.

The cost of a set of those buttons is over half of what a brand new snowflake costs....just sayin'.

[ducpainter]

So, is anyone using the snowflake (#3) rotor on their scoot?  I did a bit of searching and found some posts regarding the aluminum carriers warping easily due to heat.  Anyone?

I have been thinking about converting my rotors (#2) to full floating with the ol' hammer and socket method.  I tried turning the buttons the other day and some turned easily, some not so much.  So, if they have to come off for cleaning it may be time to float them as well...

Speaking of floating rotors, any use these buttons off of the MotoWheels website?
SPIEGLER "Free Floating" Brake Rotor Button: 5mm
They say you could remove a 0.5 pounds of unsprung weight with just these buttons replacing the stock steel buttons.  Anyone?

I have snowflakes on both my bikes.

The ones on the monster are home floated. I like the results, and the carriers don't carry enough heat to warp. IMO that's bs. The biggest problem with rotors on street bikes is heat soak in isolated spots due to sitting at traffic lights with the front brake applied. The area under the pads can't release the heat and becomes harder than the surrounding area. This area now wears slower and results in pulsation from uneven rotor wear.

The set on my 996 are loaners so I can't float them, but with the 4 pad calipers the brakes are all I need.

[Blue]

Excellent information; I really appreciate it!

I went to the Yoyodyne website to look at the options from OEM Brembo options.
The cost decreases as the weight decreases!

#1
320mm Ducati Disc- Steel Carrier - Brembo
$151.88 ea


#2
320mm x4 Ducati Monster Brembo brake disc
$142.33 ea


#3
320mm x 5 Snowflake Rotor Assy Ducati - Yamaha Brembo
$139.75 ea

[junior varsity]

indeed!


I think I may add this to a project 'wiki' for our faq/tutorials section where we can compile the list of options - rotors, pads, clutches - all wear parts and maintenance items - a handy reference distinguishing price points, features, etc would be nice.

[Speeddog]

Circa 1990 HRC Factory rotors; 10mm thick vented cast iron, full floating.