A standard-size digital servo with steel gears, aimed at steering duty in 1/10 and 1/8 bashers and short course trucks. Steel gears are the point of difference against the resin-geared servos in most RTR packages — they're what stops a hard landing or a wall strike from stripping the gear train, which is the most common way a stock steering servo dies.

Torque scales with voltage: 10.1kg/cm at 6.0V, rising to 12.96kg/cm at 8.4V. If your ESC's BEC supports high voltage, running it there is worth doing — you get around 28% more torque for nothing but a setting change.

Fitment

Spektrum lists this servo as compatible with the Arrma Big Rock 223S (ARA4312V4), Granite 223S (ARA4302V4), Kraton 4S (ARA4408V2), Outcast 4S (ARA4410V2), Senton 223S DSC (ARA4303V4), Vorteks 223S (ARA4305V4), Infraction 223S DSC (ARA4315V4), Mojave 4S (ARA4404) and Typhon 223S (ARA4306V4).

Specifications

Type: digital
Case size: standard
Gear material: steel
Spline: 25 tooth
Torque: 10.1kg/cm (140oz/in) at 6.0V; 12.96kg/cm (180oz/in) at 8.4V
Operating voltage: 6.0–8.4V (HV capable)
Connector: universal
Application: steering

The 25-tooth spline suits Spektrum, Futaba and most non-Airtronics servo horns. Check your BEC output voltage before running at 8.4V.