Ninebot S, swallowbot - January 26, 2021 Speed and Performance Upgrade for GoKart by More4Motion Swallowbot upgrade is now comparable with Ninebot GOKart. Speed is increased up to 30km/h. Share Share on Facebook Leave a comment Name Email Message Please note, comments must be approved before they are published Back to Swallowbot Upgrade Solutions for Segway Products Tags Amazon Handlebar miniPLUS MiniPro Errors Ninebot S Off road Repairs Segway miniPRO swallowbot Technical Support upgrade