The Blackbox 850R is a versatile and powerful ESC capable of winning at the highest levels of competition

Full titanium turnbuckle set for the F1ULTRA

non-adjustable end bell is combined with a high precision and balanced rotor

launch rod and launch rod cap

HPI Racing - Saturn 12T 550 Motor Zap Glue The Blackbox 850R is aThe Saturn 12 turn, 550 size motor is the most powerful motor in the HPI Racing Saturn line up! If you're looking for an easy to use power boost for your off road racer or touring car RC, this is the motor you've been looking for! The extra large size means you'll get extra torque for excellent acceleration and "pop" over jumps, while the 12 turn construction gives you wild top speeds thanks to huge amounts of RPM! Features standard motor mounting