Alu radio dish mounts allow more solid radio dish mounting while reducing the possibility stripped threads. Newly-updated alu seems allow small throttle servo become mounted in radio dish, and center gear be more correctly tensioned. Kept alu remain enables tighter gear stress adjustment. Ultra-strong construction for lengthy lifespan and durability in perhaps the many extreme race conditions. CNC-machined from premium Swiss 7075 T6 aluminum. Amount of 2 pieces (left & right).