My 1990 TW200 is now running. Wow what a short 1st gear. Good for about 5mph. Has anyone changed sprockets. 15 on the front and 42 on the back maybe. I am not looking for 100mph but 65 or so to keep from being ran over maybe. I havent done the math to figure out top end and dont know what climbing a hill would be like. Just curious about some gearing options. Any and all suggestions are appreciated. Thanks go to sorethumb on this forum for the gas cap, he's very good to deal with, good prices and fast shipping.