Quad Vent Channel
Quad Vent Channels are Science bodyboard's take on the quad concave. These are usually combined with the Tri Scallop tail. The two concave's closest to the rail are long, wide & deep like many other quad concaves but the two middle concaves are shorter, shallower, thinner & closer to the rail conacve channels. This complements the tri crecent tail to create water flow's for extra speed, lift & hold in the wave face.
The New Tri / Quad Channel Tail combo is a on or off Channel System. It engages when you need it and has a normal ride in cruise mode.The Four Channels are narrow and deep with a flat section in centre to help give you a bit more release when you need it. Push hard on your rail and the quads rip in with hold and drive and combined with the Tri Crescent hooks in the First and Fourth Channel this allows you to turn sharper and still keep the hold and drive your after.