Feeler: two YSR 50's both have stock bores but each have 24mm flat slide carbs, Team Calamari pipes Red bike has Douglas wheels, aluminum boxed swingarm, powder coated frame, tapered steering bearings,cryodized clutch plate, billet wheel spacers, clip-ons. and newer motor. Blue bike E-coated frame which thanks to UPS replaced the stock frame which I still have and will go with the sale, nology ignition, brass swingarm bushings, and probably more I can't remember. Both bikes in great shape haven't used them for the past three years. Asking 2,000 a piece.