i installed the kuryakyn magum plus, large head with long stems on my '02 BA...didn't order/need any adapters...the mirrors come with an ssortment of mounting hardware, intended for harley mounting as i understand it, and some of these worked just fine...plus a couple of SS washers from my local hardware store...i get a bit of vibration at certain rpm's, notably around 4000...i can live with it, i just drive faster
...but i love the look and the wider field of view...
