Lighter, Lighter, and Stronger! LSF is the freshwater version of the new Litespeed. This chassis is based on the conical system found in Lamson reels with the addition of a click stop drag knob and a unique spring set. This allows for a linear progression of torque with very fine resolution at the light end of its range. LSF spool and frame architecture is super-arbor in scale for high retrieve, but exposed to promote line drying and, like the name implies, reduce weight.