Aloha from Waikiki, I just purchased this pig from Suzhou Ansbern Sports Co., Ltd. it's the ASB-EB-31 model listed here https://www.alibaba.com/product-detail/2019-Ansbern-High-Speed-50KM-H_60778480265.html?spm=a2700.7724838.2017115.1.77e33a98eCvkIX with a belt drive, 5 speed IGH hub, 4.8 inch...