Easton havoc direct mount stemget in close and take a look at the havoc bolt on its one of the most intricately machined perfectly executed cnc stems ever made mount this stem to the top crown of your fox 40 or rockshox boxxer and youll instantly notice the havoc feels as stiff as a fire hydrant and thanks to eastons advanced engineering this thing is every bit as tough the havoc bolt on is adaptable to three length settings 45 50 and 55 millimeter and a perfect 5 millimeters of ris