Canoeing.com Definition: The blades of these paddles are similar in dimension to the River/Whitewater paddles but with a significant difference. The shaft of the paddle, where it meets the blade, is bent typically between 12˚-14˚. Because the blade is at an angle, it will remain vertical to the canoe throughout the stroke. Paddling efficiency can be gained with shorter strokes and increased stroke-rates. Bent shaft paddles are ideal for racing and recreational use. The blades are at least 8” wide, typically no longer than 21” and are lightweight and durable. Blade styles include Sugar-island, and whitewater with variations like a squared-off end.