Increase your performance or increase your fitness routine, you choose the fin that is right for you: Standard or Turbo... low or a higher gear! This is very evident when using a sailing kit. The added power and speed of the sail often outpaces the standard fins (similar to pedaling a bike down hill in first gear). Want to go really fast? Add TURBOs. Hobie Mirage kayak users report as much as 10% increase in speed and more using TURBO Fins. But its not all about speed, you can get top end speed and a slower cadence for cruising (Less pedals per mile). All achieved with these larger and more efficient fin designs. These longer fins can also increase lateral resistance for sailing upwind.