LITESPEED F Series. The New Lamson Litespeed F series reels. Perfect for any freshwater application on rivers and lakes, the LSF chassis, denoted for freshwater, is based on the conical system found in other Lamson 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. The LSF spool and frame architecture is super-arbor in scale for high retrieve, but while also machined slotted for an open look to promote line drying and, of course, reduce weight.p> Have product questions or need help choosing the best Lamson fly reel to pair with your rod? Our Pro Staff of fly fishing experts is here to help you find the perfect Lamson reel to maximize your success and enjoyment on the water!