hi ok so i have a murray Ultra Terrain Mt bike for sale do not know much about bike so if you want details i will try to help but i can tell you this im 6'3'' 280 pounds and it works great for me. well it did when i used to use it. i have not been on the dang thing in over a year and now im moving soon and do not want to take it with me. it does have an extra rim and tire i will throw in witht the cost of the bike. it will need tubes it is eaither a size 24 or 26 in tube. if interested let me know call or text