Join Date: Feb 2009
Location: Glendale, Arizona, USA
Model: 1987 GL1200 Interstate 290,000 miles
Sure, you can use LED if you have no need to see anything.
The OEM reflector is designed to be used with a halogen bulb. The reflectors have lost a lot of their ability to reflect over the years, which would make LED bulbs even less effective.
If you could figure out a way to renew, or polish your reflector, that would probably bring the beam back to what it should be. Trouble is, the reflector is very fragile and sensitive to chemicals. Guess how I know that.
Why ain't we ridin'?