https://ebikereviewerdentinygraves.blogspot.com/2024/10/5-best-cheap-mtb-bike-frames.html

MTB frames come in a wide variety of sizes and shapes to meet every rider's needs, with options ranging from hardtail to full suspension models available. Steel is an increasingly popular frame material. Not only is it light and sturdy, but its flexible nature allows it to absorb shocks effectively. Aluminum alloy frames are another popular material choice for mountain bike frames, offering both light weight and stiffness similar to steel frames while often costing less than carbon options.