This is the aluminum mount and horn you've been waiting for! Our Losi Mini B / T mount and horn are made from high quality machined 7075 aluminum. This mount has 3 servo mounting locations, 2 locations for the mount, and the horn is threaded to fit the Losi ball end, all designed with optimal fitment and servo placement in mind! The mount can fit servos up to 23.5mm wide and 14mm tall. The kit comes with mount, horn, and hardware to mount servo and horn. Our mount fits our RS100 Micro, and most other servos such as Reefs, AGF, Emax, Turnigy, Savox, and others. Servo horn is a 25T Micro Spline