These seats are not just a fiberglass seat. They are made of aerospace grade e- glass or carbon pre- pregs. They are vacuume bagged and oven cured. This makes them very light and very strong. They are also flexible, which frees up the chassis. There is nothing available even close to these right now. We have a small, medium, and large. The seats are plenty strong to be able to bolt as much lead on them as you need. For more info you can like us on Facebook, message me or call 503 775 1114.
Wayne Felch
Stohr Composites