MOTO-D Motorcycle Mirror Block Offs Yamaha R1 Billet Aluminum Sportbike Mirror (Block Off) Caps Increase aerodynamic advantage, lose weight, and gain style with our new laser etched billet aluminum mirror block-off plates Block-Off Plates come with all hardware and install in minutes; provides a clean stylish look Fits most Yamaha R1 Fairings with 30mm center-to-center mirror screw holes