I have no idea what a D4DC is, Sorry. I have a 2012 Spyder RTL. It has the 998 VTwin and se5 transmission. I have had it for 6 years and it has 63,520 miles on it. It runs very well,is smooth on long trips and handles very well once you learn how to ride it. If you are coming from 2 wheels it will take a little time to make the adjustment. Relax your grip on the bars. Oil changes are every 4500 miles and are fiddly because of all the plastic you have to remove. Your Spyder will have the original tires on it. They are junk,get some decent car tires on it and it will ride and drive really great. The original tires are too old to trust anyway. BajaRon for oil filters and seals. Motorcycledave.com and Value Accessories are great for accessories.So is canamspyderaccessories.com. I have bought from all of them and been treated very well. Enjoy your Spyder and get some miles on that poor thing. Post pictures.