Kuryakyn Magnum, large head variant, stock length stems (my R3 Touring has very wide bars, don't need the extension of the mickey mouse crapfest mirrors that are stock). Tried flat glass thinking I'd see better - vibration and minimal field of view... Oh well. Bought new heads separately with convex glass, and we're talking near perfection. The large mirrors look right at home om the Touring.
I can also highly recommend the adapters any Harley-style mirrors need from newbonneville.com. Worked perfectly and the mirrors are rock solid on there.