Traxxas T-Maxx Electric Conversion mount kit 1/10th scale, The kit will be direct fit for a 2.5 t Maxx. Kit includes 1 motor mount that will fit brush and brushless 1/10 scale motors, 1 ESC mount inside measurements 1 5/8 x 2in, 1 battery mount with 20mm strap holes, 1 receiver mount that will fit 27mhz. Total of 4 mounts.