Front brake disc for Aprilia SX, RX 06-, Bultaco Lobito, Derbi Senda R DRD, X-treme, Senda SM, X-Race, X-treme, Gilera RCR, SMT and Rieju MRT, MRX, Tango. Outer diameter: 260 mm Inner diameter: 108 mm hole circle: 125mm number of the mounting holes 6 mounting hole: 6.5mm Reduction: No Thickness: 3.5mm KBA: no