quick view Jackson Kayak Jackson Kayak Flex Drive Mark IV (Upper and Lower Unit) (1) MSRP: $1,199.00 Introducing the Jackson Kayak Flex Drive Mark IV, the latest innovation in kayak propulsion. This system offers a shallow water auto-retracting lower unit, a 3-position dagger board to accommodate a variety of depths, and a sealed above-water pedal... Add to Wish List Add to My Wish List Create New Wish List Compare