Hot Racing Losi Micro T Baja Aluminum 51t Slipper Gear MCT451T Made by Hot Racing; Hot Racing is a United States based company; parts are sourced from Chinese producers All Hot Racing upgrade parts are direct replacements for stock components; additional parts are not required Hot Racing part number MCT451T; UPC 083745355840 This item works with: Losi 1:36 Micro-T, Micro Baja, Micro DT, Raminator