Not that I am aware of and no one lists the V2 in the same size, if you look at the listing here, V2 is a 320mm disc and the 1199 is a 330mm https://www.bikehps.com/acatalog/Brembo_Brake_Discs_for_Ducati_Motorcycles.html#aBRMSODUC
the thing is the wheels are the same the offset of the calliper is the same so with/or without just a pair of the calliper spacers you could run the 330 on the v2 or the 320 on the v4
Pretty sure the discs on Panigale are the same as on 749/999/848/1098 etc, they only vary in diameter (320 or 330mm). I bought some s/h HPK discs (320mm) that were on a Pani and they fitted my 749.
M10x55mm calliper bolts on the 320mm M10x60mm on the 330mm Seem to be the only extras needed on top of spacers for the smaller bikes. But when I looked into it ages ago it was just an unnecessary weight penalty to put bigger discs on the less powerful bikes. Better brake pads seem to be the way to go for improved stopping.
Surely the same thing applies also to the more powerful bikes, why do they need bigger discs? Are they so much faster and/or heavier that the 320mm aren't up to the job?
HPK 320mm and SBS DS pads were well up to the job on my Panigale V4. In fact, I liked the set up so much, I’ve spec’ed the same for my Pikes Peak Andy
As far as I can tell bigger discs = better heat dissipation and a little more leverage. Upgraded rotors such as Brembo HPK are also thicker and heavier than standard discs for the same reason. I guess they are also more resistant to warping when things get serious. In many cases the higher powered bikes are lighter - such as the 1299 vs the 959 - in stock trim the 1299 is lighter due to the more expensive components. (alloy tank, rear subframe, wheels, magnesium engine covers, front subframe, all offset the heavier swingarm to result in a lighter bike) For the vast majority of use cases the 320mm discs would be a better option due to the lighter weight = reduced unsprung and rotational mass. But I guess the ‘potential’ of the faster bike is to push harder and therefore need the bigger discs (and bragging rights at the local bike meet). The reality as Andy states, is 320mm are ample for most riders. Racers would know where that crossover point is for them I guess - where the advantage of lighter smaller rotors is outweighed by the need for better heat dissipation and extra leverage. Once a certain point is reached then the materials are the limiting factor and carbon ceramics come in - massive discs but lightweight.
I've got HPK discs and (radial) calipers on my 916 and, whilst it's obviously not as fast as the newer bikes, it is considerably heavier and so should 'need' more brakes yet, IMO they are plenty powerful enough. Of course I'm not a racer but do any of them use the larger disc setup anyway?
I was just reading about this out of curiosity From a Brembo article about WSBK in 2021: “Each rider has a choice of 338.5 mm (13.33 inches) or 336 mm (13.23 inches) diameter discs. The larger diameter means that more pressure can be exerted, but it also weighs more. As of this year, Brembo is also making the innovative ventilated steel disc available to the teams. Carbon has been barred from Superbike since 1994 to limit costs. In fact, the discs are made of steel, even though regulations permit the use of carbon as long as it doesn't account for more than 2.1% of the total disc weight. Alloys containing beryllium are also banned for the same reason. Moto GP is a completely different ballgame. “Riders will have no less than 12 different types of carbon discs to chose from this year; six different diameters, each available in 'High Mass' or 'Standard Mass' material specifications. The majority of riders are expected to choose 340mm diameter discs, split between High and Standard Mass. However, some teams will continue to use both types of 320mm diameter disc. The Brembo range also boasts a new 355mm diameter ventilated carbon disc, which has been used during testing at Sepang and Mandalika and is available for the start of the season. Its main advantage is 'precision-controlled ventilation that keeps the disc cool by increasing heat exchange. It was specially designed for bikes on circuits that are very tough on braking systems such as Spielberg, Motegi, Sepang or Buriram.' A ventilated version of the 340mm diameter disc is also available, introduced in 2021 in Austria, making it the only disc in the Brembo range that comes in both standard and ventilated formats.” I then looked up prices for composite discs and they are just daft! https://www.bikehps.com/acatalog/SICOM-Front-Discs-for-Ducati.html Almost 3k for a set of these - god knows what the MotoGP discs cost!
