My 2012 Classic came with ASC but not ESA. My load doesn't change much day to day so ,for me, not having ESA is no biggie. I did want ASC for the safety. I ride a lot in the rain and some snow, bad roads etc. Until a few weeks ago, at about 18,000 miles, I thought ASC was the cat's meow; never a slip of the rear wheel. Then, a block away from the Motorcycle show in New York, on a cold night, going straight on a chewed up City street, of a sudden, the rear wheel hit a patch of gravel and slid out like I was on ice- Now was the tome for ASC to work its magic; cold tires on gravel. ASC did nothing. I asked the dealer how it was that it worked so well for so long keeping the grip in horrible conditions, leans in the rain, over hill and dale, slabs, twisties and city streets, winter, summer, spring and fall-and then disappeared just like that going straight and not terribly fast or hard on throttle.. He said, it wasn't the ASC that kept the rear wheel from losing traction in the past- the ASC doesn't begin to kick in until the wheel loses its grip and begins to spin out. It didn't need to kick in in the past because i never broke traction. it didnt kick in when I needed it. So for me- not worth he money.