The Thudbuster ST features a shorter parallelogram mechanism, which is particularly beneficial for enthusiastic marathon riders as well as XC bikers. The question of whether a full-suspension bike is truly necessary for cross-country trails will never be definitively answered. The fact is that a sensitively responsive suspension seat post with good functionality has the same effect. After all, the rider - not the bike - is the heaviest component in the entire system, and the Thudbuster ST provides excellent suspension for the rider. This ensures that power transfer remains intact even in tricky situations. The Thudbuster is easy to install.