FCS II Connect Byte GF Side Bites Fin SetDesigned as quad rear side bites for 2 + 1 setups, the FCS II Connect Byte Glass Flex Side Bites Fin Set adds speed, stability, and control to longboards and SUPs, with an elongated, swept template that delivers strong hold off the bottom and smooth carving on open faces. Built for power surfers, it performs especially well in down the line waves and fits the FCS II fin system, with versatility to also serve as shortboard quad rear fins. Fin Size