Then you're just not paying attention. Early 80s is 2 series of motors ago. A Shovelhead with a 4 speed. Then came the Evo, then the 5 speed, then the 88 inch Twin CXam then the 96 incher with the 6 speed. All reaonably easily distinguishable.[QUOTE] Got to admit I can't tell one from another except for obvious things like Springers, Electra Glides and Sportsters. Periodically they seem to hog out (hah) the engine for a few more cubes and bolt some more shiny bits on.[/QUOTE] There are several indicators for each model although the parts are almost all interchangeable between modls in a family. Dynas have external rear springs, Softails have hidden shocks and a triangular rear frame. FL style Softails have the touring style front end. That's the Fat Boy, Heritage and Deluxe. The Fat Boy has a fat rear tire, the Heritage has a windshield and studded bags and the Deluxe has a nostalgia style seat and whitewalls. It's easy if you take interest. Unless the heads are changed you can't tell the big bore kit from stock.[QUOTE] I think you have to be a Harley aficonado to tell one model year's bike from another, as if it matters. That said, I couldn't tell you whether a Blade or Gixxer Thou was a 2009 or 2006 model, just by glancing at it, either.[/QUOTE] Pretty much within a few years. Colours occasionally give it away but other differences are small. I can quickly tell what year an Ultra Classic is from 2003 onwards. '03 had a 130 rear tire and anniversary colours. '04 had a 140 back tire '05 had vented lower fairings. '06 had the Harmon Kardon stereo '07 had the 96" and 6 speed with O2 sensors '08 hade the 6 gallon tank and redesigned seat '09 had the new frame, 180 rear tire and 2:1:2 exhaust '10 had the mini sensors and an improved fuel filler. There are similar differences in most of the models.[QUOTE] The ones that appeal are the basic Glides, in that they seem to be a palette for you to work on.[/QUOTE] They are all designed as a palette. The bike is a downpayment on the accessories. Bob