Jake Scrace, 25, and Lewis Crathern, 24, had been planning Monday morning's jump for three years but had to wait for perfect weather conditions.
They took off from Goring to the west side of Worthing in gusts of wind that were more than 40mph, and had two helpers on the beach. The pair said the jump was quite hazardous and should not be attempted by amateurs.
Mr Crathern said the jump was "epic".
"It was everything I've lived for - amazing," he said.
Everything you've lived for, nice. And here I've been living to destroy my body with booze and die young. But, you know, jumping over a pier with a kite, that's something too. *snicker* Pussies.
Two kite surfers jump over pier [bbcnews]
Thanks to And and 2MechanicalArms, one of which may or may not be a robot.