They are aftermarket bar end mirrors, not OEM motorcycle mirrors, only can install in 7/8 standard hollow handlebar, if handlebar is threaded may need to be slightly modified. FULLY ADJUSTABLE – Design of Ball-type connection joint and foldable holder, this round style bar end mirror can be 360 degrees rotated and freely adjusted up & down or sideway for the best viewing angle STURDY CONSTRUCTION – CNC Machined Aluminum alloy body with durable black coating, ilt for long lasting, it is shockproof and corrosion resistant. CLEAR VISION – Adopted White clear glass lens, give a high definition and wider angle vision on both Day and Night, easily seeing the upcoming cars and obstacles. WIDE FITMENT: This Bar End Mirrors Motorcycle Rear View Mirror Suitable for most brands of motorbike, Street Bike, ATV, Dirt Bike, BMX Bicycle and Scooter, Fits Most Harley Davidsons, Suzuki, Cruiser Chopper, Honda, Kawasaki Cruisers, Touring Bikes, Sport Bike, Electric Scooters etc. Product Description