Cane creek thudbuster st seatpostthe thudbuster st presents all the benefits of the original thudbuster lt design in a smaller package the thudbuster st uses a shorter parallel linkage mechanism to yield the ideal suspension post forxc riders looking to take the edge off with less of a weight penaltyroad riding enthusiastssmaller riders and tandem stokersdue to the smaller minimum extensioncomfort bike ownersthe shorter linkage design still provides 13 inches of active stiction free trave