DNA is simply a scooter engine in a (almost) bike shell. I rode a scooter for a year and now own 125, with the 125 u get the advantage of gears, so more fun to ride. it goes fast. (a good RS will get to 110 derestricted). Theres also so much more streetcred with riding the RS compared to DNA. Hope all goes well, email me if u need more help!