Hot Racing SCTE38SM1 Steel Center Spur Gear (38t 1.0mod) - Losi Ten & 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 SCTE38SM1; UPC 083745802634 This item works with: Losi 1:10 SCTE short course, 1:10 TEN-T Nitro Truggy RTR