While a small and sometimes insignificant part, the servo horn is one of those easily-avoided parts to upgrade. However, I can’t tell you how many times I’ve seen on fail.
Well, Team Associated now has you covered with these new aluminum Factory Team servo horns. Made of 7075 T6 aluminum, these horns come in 23T and 25T and use a M2.5 screw to clamp-secure to the output shaft.
The 23T fits Airtronics, JR, KO, and Spektrum servos; the 25T fits XP Digital, Reedy, Futaba, Savox, and newer-style Hitec servos.
#1361 Factory Team Aluminum Servo Horn 23T, 18.5mm
#1363 Factory Team Aluminum Servo Horn 25T, 18.5mm
[source: www.teamassociated.com]