Braketech 310mm x 6mm Axis Ductile Iron Over-Size Kit w/Hard Anodized Carriers

310mm x 6mm AXIS Over-Size Kit with Hard Anodized Carriers, Ductile Iron, kit includes hub spacers and rotor bolts.

Regarding the size difference, it all comes down to the mechanical advantage produced by moving the fulcrum point 10mm further out for more leverage on the wheel. There is also the proportional advantage of greater thermal capacity created by more mass and surface area of the larger unit. Another inherent improvement in all the AXIS series floaters is that they are indeed genuine full-floaters, free to move on their carriers. This reduces brake drag along with all the endemic benefits associated with that including brakes which run cooler than their semi-floating counterparts.
A perfect match to these competition designed full-floaters is the new Ferodo Carbon/ceramic CP1 race pads.  Inspired by the car race division, all of which in that arena are formulated for iron rotors, yet perform brilliantly on stainless as well.  But truly, the CP’s produce their best result on iron and effectively magnify the performance parameters you’d experience with them on stainless rotors.
From our point of view, if you can deal with the mechanical issues relative to the larger diameter rotors (getting the calipers on and off quickly, etc.), you’ll end up with more powerful brakes as described above.  No doubt that’s why Ducati opted for the 330’s on the 1098, 1198 and now their latest Superbike, the Panigale.
Over-Size kits include BT AXIS Rotors (2) with Billet aluminum caliper brackets or spacers for use with O.E. calipers (pads not included). NOTE: kits that are 20mm O/S include longer caliper bolts, kits that are 10mm O/S do not.