These long stalk turn signals install using an 8 MM mounting stud. This offers a variety of mounting possibilities. These also work great as rear turn signals, I mounted similar signals directly to my sub-frame with only minor modification. They feature rubber mounted studs so they don’t break easily when you accidentally knock them into something.
These lights have a window that lights up on the Front and Rear for a cool unique effect and better visibility.

Stats:

One Pair of Clear Lenses Carbon Base, Amber Bulbs Long Stalk Turn Signals

Wiring: Two Wire, 12 Volt Systems

Bulb: 23 Watt Single Filament

Install: Universal Signal, will fit many different bikes, installation will vary, may require modification.

Dimensions: 3 3/4" Long (not including metal mounting stud)