HK GROUP Motorcycle Black Diamond Blade Style Rearview Mirrors 8mm 10mm Fit All Motorcycle Standard Naked Street Bike with Standard Metric Screws 7/8" handlebar Honda CB1000R Shadow Valkyrie Mirror Size: Length 5 1/2 inches X Width 2 1/4 inches (14cm X 5.7cm) Stem Material: Heavy duty Rough Black powder coated Billet aluminum;Stem Height: 3 1/2" (8.9cm) Fits Most Motorcycle, Street Bike, Scooter, Cruiser & Chopper Models with Standard Metric Screws Please check your bike's mirror fitting if it is 8mm or 10mm threat before ordering the product. 180 Degree All Angle Ball Joint Swivel Design