Got My Dna50 very quick compared to my mates peugeots etc i can do 41 on strait and 45 downhill (restricted) !!!!! i must have the wind behind me or sumint .getting derestrict and a leo vice zx chrome which should give me 8hp apparently. its great handling and acceleration and i have had no probs with it, only once didnĀ“t start after bein left outside my mates in rain.but otherwise its the best bike .