Magura 8. R Race Compound Disc Brake Pads Magura's 8-series disc brake pads feature a disconnected back plate, letting them compress independently of each other. Their 8. R pads utilize their unique race compound, offering maximum stopping power for riders who want to push the limits. Features Compatible brakes Magura 4-piston MT5 or MT7Compound Race Disconnected back plate splits pads up into one-per-piston | Magura | 8. r Race Disc Brake Pads Mt5/7 Series 4 Piston Brakes