"Contitech" Replacement drive belts for the RIOT drive system engineered in Germany by Continental. Drive belts inevitably snap due to wear from various road conditions and stress from tension. Exway has selected "Contitech" belts as the standard for the Riot system considering performance, longevity and reliability.
Good enough for a Porsche, most certainly good enough for the Porsche of esk8.
Be sure to always do pre and post ride checks and proper maintenance on your RIOT system to ensure top performance of your belt drive.