Funimation has uploaded an English dub clip from Episode 12 of SK8 the Infinity where ... Reki finished Langa's board just in time for the big race.
Start streaming SK8 the Infinity on Funimation: https://www.funimation.com/shows/sk8-the-infinity/
Start streaming SK8 the Infinity on Funimation: https://www.funimation.com/shows/sk8-the-infinity/