This is a replacement pad for 54813090300 For several years now, the EBC "X" series pads have been the choice of top enduro and motocross riders for certain conditions around the world. The main advantage of this type of material is its lack of heat generation or conduction, which keeps both the rotor and the caliper cool. Top enduro and hare scrambles riders prefer this material for fast and dry riding conditions. These pads are also TUV tested and KBA approved for street use on enduro bikes. EBC also makes the "R" series pads, a heavy duty sintered pad that has become the aftermarket standard. High durability, resistance to contamination by mud, water, sand, and grit, reduced disc damage, and long life make the "R" pads very popular. Fits these models, all applications are rear brakes: 300EXC/MXC 98-03 380 SX/EXC 98-03 400 EXC 98-02 520/525 SX/EXC 01-03 640 Super Enduro/Supermoto 00-04 640 Adventure 00-05 640 Duke 03-05 640/660 SMC 03-05 690 Enduro 08 690 SM 02-08 690 SMR 07-08 990 Super Duke 05-08