The Moose coils will work if you just want a light on the trail. I'll be full blown street legal. The Moose coils won't power all that I will be running. First off the E-Line coil will keep the battery charged. If you don't have a battery your lights go dim at idle. You need to add up the watts of the items you will be running and make sure the coil puts out enough. I'll be running battery, head light, blinkers, stop light, tag light, horn, back lit speedo with indicator lights, GPS, 12 volt port for charging phones, and hand grip heaters. Man, after listing all of that stuff, sounds like I should add running water. And for 440 bucks they just let you look at the coil. Cost of the E-Line is $459. plus shipping. Let us know how you like the Moose coil.