Hitec RCD - HSB-9370TH Multi-Purpose, Brushless, Titanium Gear Servo HPI160558 The 6-Shot ST wheels feature

The 6-Shot ST wheels feature a universal fit 12mm hex hub that will let you install them on most 1/10th scale trucks

SV3 Sidewinder Waterproof 1:10 12V ESC & 1406-7700kv Sensored Motor Combo

2 - Bi-Metal R-CVD Yoke

for the F4

High Torque Digital Metal Gear Mini Servo

Hitec RCD - HSB-9370TH Multi-Purpose, Brushless, Titanium Gear Servo HPI160558 The 6-Shot ST wheels featureWith ultra efficient brushless motors, titanium gear trains, low current consumption and constant output power, the HSB 93XX series of servos is the perfect match for the most discriminating pilots and racers. Features: Low Power Consumption Hybrid Nylon Reinforced Plastic and Aluminum Case Dust Resistant and Splash Proof Case Dual Ball Bearing Supported Output Shaft Constant Output Torque Custom Long Life Brushless Motor Specifications: 25 Tooth