Dyna Glide ModelsSuper Glide, Super Glide Sport, Super Glide Custom, Dyna Glide Convertible, Super Glide T-Sport, Dyna Glide Police, Dyna Switchback, Low Rider, Street Bob, Fat Bob and Wide Glide.
At that length, Progressives will definitely be better than stock. If your looking at 412s, check how much weight you will be riding as the HDs might be too much.
If you want a much better ride and have the budget, then look at Ohlins or Ricors.
Progressive rear shocks
