DifferentStrokes wrote:Not often is there a thread on 50's and at the risk of finding where the edge of the tire begins, I come stomping in with my muddy boots. Like marshmellow treats, 50's are fun and girls like them too. YSR was hauling my 245lb carcus to 65mph and melting the electrode clean off. picked up a derbi with the 80cc kit / slicks and some shiney bits and bobbles. All in an attempt to find a suitable plateform for my CR500 motor. I suppose I fancy rideing a chainsaw, which leads me to the thought --- Why didn't they ever develop a single piston , litre 2-stroke motor I say, sell it now, get married have kids or resign yourself to a life filled with grease under your finger nails and toothy/bugs in the teeth/ 2-stroke grins. Speaking of that , does anyone know if the 28 rotors can be used on the 21