I guess it all depends on how cozy you want to get. I am currently 230, 5'11" with an older Birkin, standard size. After some time adjusting the pedals, I feel fine. Plenty of lateral support. Find one to try on for size. If you travel any, maybe post plans here and stumble across a Caterham owner at your destination. I'm is Dallas (Hell Hole), but with a Birkin.