The Harmony BTS Rudder Blade and Blade Housing is the replacement blade for all of the BTS rudder systems including both Wilderness Systems, Perception and Dagger Kayaks.
Great rudder. Shipped fast. Comes with a shaft with two pre drilled holes for pins ( pins not included). After drilling a hole in the stern of my yak, I tried shimming and rigging only to give up trying to take up "play". It wobbles in the hole that was drilled slightly smaller than shaft diameter. Solution? I ran a 3/8 24 dye down the shaft and threaded it. It's now bolted to the yak with no play what so ever. Turns as it should and works great. I recommend this product but would like to see a threaded shaft out of the box.
This is a great rudder housing and blade, and was easy to install on my Perception kayak.