Flex Drive Mark IV Upper, Lower & Prop Complete Upgrade

If your pedal drive is holding you back from more water, more speed, and more fish, this upgrade changes that.

The Flex Drive Mark IV is the most refined version of Jackson's pedal drive system yet, and it's a meaningful step forward from previous generations. The upper unit now runs in a sealed oil bath, which eliminates the need for regular greasing and makes maintenance as simple as a freshwater rinse after each outing. Upgraded bearings keep operation noticeably quieter, and a new belt-driven system combined with increased cable diameter makes pedalling smoother than any earlier version.

The performance gains are real. A 3:1 pedal input feeding into a 4:1 spiral bevel gear system drives a more aggressive prop, translating your effort into better speed and efficiency on the water. The auto-retracting lower unit handles shallow water automatically, the three-position daggerboard gives you trim control, and the sealed system runs cleanly in both forward and reverse. For kayak anglers covering long stretches of Canadian lakes and rivers, that combination of speed, durability, and low maintenance is genuinely compelling.

This complete upper, lower, and prop kit is backwards compatible with all Jackson FD kayaks. Everything needed for installation is included except a socket wrench. Backed by a two-year manufacturer warranty.

• Complete upgrade kit: upper unit, lower unit, and prop
• Sealed oil bath upper unit, virtually maintenance free
• 3:1 pedal input to 4:1 spiral bevel gear drive system
• New belt-driven system for smoother, quieter operation
• Auto-retracting lower unit for shallow water protection
• Three-position daggerboard for trim control
• Forward and reverse operation
• Backwards compatible with all Jackson FD kayak models
• Hundreds of hours of fresh and saltwater tested
• Two-year manufacturer warranty
• Made in the USA