What is a progressive sidecut on a snowboard?

Answer 1

The sidecut Radius of a snowboard is the measurement of how deeply or shallowly the boards cut is from the nose of the board to the waist (or middle of the board). This is what helps the board turn. The smaller the sidecut radius the tighter you will be able to turn. A board with a larger sidecut will make big arching turns. It is the radius of a circle that makes the hourglass shape of the snowboard. A progressive sidecut is slightly set back so a rider can ease into a turn at the contact point and get a powerful, snappy exit as the sidecut gets progressively deeper towards the tail. The sidecut there for would be reported as two numbers; A bigger number for the lead in radius and a smaller number for the exit radius.