My 2007 Schwinn K.K.GT Dyno Roadster with a Robin/Subaru 33.5 cc 4 stroke friction drive! Love it, but it's gotta go! On July 4th I put together my Brand new Dyno Slick Daddy with a Honda GX 50 49 cc 4 stroke! The Roadster gets around 200 mpg & 30 mph But the GX 50 go's over 40 mph and is getting better than 200 mpg!!! That baby rides like a dream! It comes stock with a 24x3 rear w/ coaster brake & 3 speed nexus, and I installed a 26x3 w/tube on the front that comes stock with disk brake. I also put on this 8' Stretch of sunshine a front spare tube bag & a rear bag with tools,c02 kit & patch kit. I can ride as far as I wanna go with this *****!!! PS- I will sell the Roadster!