748R Front Discs different?

998Addict · 30-Dec-2003, 11:01

Dear All

Wonder if you could shet some light on this for me.

I bought a set of Brembo front discs from e-Bay last year to use on my 998S race bike. They were advertised as "wider offset" type, "off a 2001/2002 748R."

What puzzles me is that the offsets are indeed wider, making them unusable on my 998S, but after having a large number of 9*6/9*8x bikes, I'd always thought running gear was identical on all models in terms of size.

I've checked the 2002 Ducati parts catalogues and these do indeed show different part numbers for front discs between the two models, but I'm aware that these do sometimes change for other reasons when the parts are actually identical.

Could anyone shed any light as to whether these discs are truly from a 748R, or are they something else masquerading?

Thanks in anticipation.

998Addict · 30-Dec-2003, 12:09

Very predictable posting now due on Market Place / e-Bay.

:-)

998Addict · 30-Dec-2003, 12:13

Is it the wheel size, the yoke width or the caliper mounting points?

neil748r · 30-Dec-2003, 12:15

It's only the discs off the MY01 & 02 748R that had the bigger offset. Reason being they ran Ohlins forks.

They're also the same as 996R and 998R.

[Edited on 30-12-2003 by neil748r]

skidlids · 30-Dec-2003, 12:31

they ran them with more offset on what is basically the race versions to improve cooling by sitting them out in the air. Any chance you could measure the offset so I can add the info to my ever growing data base.
Ta Kev

neil748r · 30-Dec-2003, 12:38

Seem to remember they have 10mm offset.

nelly · 30-Dec-2003, 13:10

you can still use them. You just need to mount a spacer between the caliper and fork leg.
Did it with a 996/ohlins/RS disc setup.

neil748r · 30-Dec-2003, 13:19

Nelly,

I'm confused, how can you move the calipers further away from the wheel by using spacers? Surely putting a spacer between the caliper and the mounting point on the fork leg will push the caliper closer to the wheel?

Bj.O.rn · 30-Dec-2003, 13:39

You need to machine the calliper mount..

Even the ohlins forkbottoms was machined to fit the 748R..

nelly · 30-Dec-2003, 15:20

Neil......confused. Me to

we used 5mm spacers, that much I know.
Let me think

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30-Dec-2003, 12:09	#2
998Addict Registered Forum User Mille Posts: 150 Join Date: Jun 2002 Location: Edinburgh, Scotland Mood: Pensive Thanks matey Very predictable posting now due on Market Place / e-Bay. :-) Reply

30-Dec-2003, 12:13	#3
998Addict Registered Forum User Mille Posts: 150 Join Date: Jun 2002 Location: Edinburgh, Scotland Mood: Pensive So what\'s different? Is it the wheel size, the yoke width or the caliper mounting points? Reply

30-Dec-2003, 12:15	#4
neil748r Registered Forum User 500SD Posts: 554 Join Date: Jun 2003 It's only the discs off the MY01 & 02 748R that had the bigger offset. Reason being they ran Ohlins forks. They're also the same as 996R and 998R. [Edited on 30-12-2003 by neil748r] Reply

30-Dec-2003, 12:31	#5
skidlids MotoGP God Posts: 18,274 Join Date: Apr 2002 Location: Oxford Mood: Its ONLY a Bike Club they ran them with more offset on what is basically the race versions to improve cooling by sitting them out in the air. Any chance you could measure the offset so I can add the info to my ever growing data base. Ta Kev Reply

30-Dec-2003, 12:38	#6
neil748r Registered Forum User 500SD Posts: 554 Join Date: Jun 2003 Seem to remember they have 10mm offset. Reply

30-Dec-2003, 13:10	#7
nelly Registered Forum User Ducati Corse Posts: 3,134 Join Date: Jan 2002 Location: notts Mood: Bloo and Yellow.. and Red now ;) you can still use them. You just need to mount a spacer between the caliper and fork leg. Did it with a 996/ohlins/RS disc setup. Reply

30-Dec-2003, 13:19	#8
neil748r Registered Forum User 500SD Posts: 554 Join Date: Jun 2003 Nelly, I'm confused, how can you move the calipers further away from the wheel by using spacers? Surely putting a spacer between the caliper and the mounting point on the fork leg will push the caliper closer to the wheel? Reply

30-Dec-2003, 13:39	#9
Bj.O.rn Registered Forum User Posts: 28 Join Date: May 2002 Location: Sweden You need to machine the calliper mount.. Even the ohlins forkbottoms was machined to fit the 748R.. Reply

30-Dec-2003, 15:20	#10
nelly Registered Forum User Ducati Corse Posts: 3,134 Join Date: Jan 2002 Location: notts Mood: Bloo and Yellow.. and Red now ;) Neil......confused. Me to we used 5mm spacers, that much I know. Let me think Reply