my names danny. live in gainesville. 20 year old art student. currently tinkering on my first build. old schwinn cruiser. 66cc skyhawk. 44t sprocket. not perfect but runs nicely. ive reached 25 mph but havent opened it up yet on a staightaway, just around my apartments parking lot. so im thinking maybe 27 or 28 is top speed right now. my air/fuel and idle isnt perfect yet so still working on that (and i think it four strokes every now and then). gunna switch to a 36t sprocket soon. quite honestly im perfectly happy with cruising at 15 mph, which it does wonderfully, but id like to have the option of doing 35-40 ;D