Emgo Roadhawk Universal Mirror Set Emgo Roadhawk Universal Mirror has a black matte finish with a protective rubber boot over adjuster. Designed models with 10mm thread. Features: Aluminum Short stem mirror Includes both left and right side, sold as pair Specs: Rectangle Head Shape Mirror Head Size 5 1/4 W x 3 1/4 T Stem Length 5 Thread Size 10mm x 1.25 (left side reverse threads on Yamaha option) Screw-in Handlebar Mount