I see ATV's now have it like morotcycles where the tail light is now used as a brake light as well. Is it hard to do this on older units? I know most aren't road legal and such but it's not a bad idea to have it anyway.

 

Whith the sensor switch that would need to go to the foot or hand brake its problably more of a hassle then its worth.

If your just off road riding where ATV belong even the tail light itself is almost pointless. Who's going to see it besides wild life anyways.