Lamson Litespeed F Reel - The art of the fly reel derives from the science of the fly reel, but at the end of the day both art and science, when held in balance, serve to make us smile. LSF The LSF is the freshwater version of the new Litespeed. The chassis is based on the conical system found in our other reels with the addition of a click stop drag knob and a unique spring set that creates 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 spare and open to promote line drying and, of course, reduce weight.