Are there any board manufactures making speed boards?
What are the instruments on some of the riders upper arms?
Nice to see Rob show the talent and speed
I dont think there are production speed boards, but dont know for sure...
The instruments are the GPS'es, on the picture it is the GT31.
I think most (including many freeracers and me) are using GT31 which is a very low cost and advanced doppler GPS.
Not very "user friendly" interface, but it works awesome and the software is tailormade/designed for speed wind and kitesurf