This review is partly based on the idea that you are aware of the other Speed 3 kites, have flown them or have seen other reviews on them to understand what they are about.
To summarize, the Speed 3 21m Deluxe is: A light wind monster, a hang time machine, a formula one racing car, a cable like pulling wake kite.
Based from the popularity and overwhelming demand produced from the Speed 3 kites released in 2009 (12m/15m/19m) Flysurfer have recently re-engineered and released the 21m. As a landboarder and kitesurfer I have always been a fan of the Speed kites for the low wind and hang time characteristics for freestlye. I have always loved the 15m Deluxe edition and the 12m for what I do and intially thought what the £$%^ to a 21m!!! All you can imagine from the size alone is massive low wind performance and the turning speed of a huge bus. Luckily only one of those characteristics is true and that’s the low wind performance. Where Flysurfer have spent more design and rnd on the 21m Speed 3 on top of the other sizes the 21m is not far from the turning speed of the 19m, ok this isn’t going to win any turning speed kite records but its far from ridiculous and is still very usable. One of the Flysurfer riders is able to kitesurf from 5-6 knots on his raceboard with similar performance to other tube kites in more wind!