HobbyStar HCS-4508HV HV Low-Profile High-Speed Coreless Digital Servo

Touring cars and low-CG builds do not have much patience for tall standard servos. The HobbyStar HCS-4508HV gives you a low-profile 28.3mm case, coreless motor, and 4.8-8.4V HV range for 1/10 touring cars, Serpent-style on-road builds, fixed-wing aircraft, and other tight chassis where servo height matters.

This servo leans into fast response, low weight, and low CG rather than monster-truck torque. That is the right lane here. The HCS-4508HV is rated at 14 kg.cm / 194 oz-in at 6.0V and 18 kg.cm / 250 oz-in at 8.4V, with a compact 40x20x28.3mm case and 55g weight.

Use it when fit, response, and chassis layout matter more than brute-force crawler torque. The compact low-profile case keeps the install tidy in builds where a standard-height servo would be a bad idea wearing a wire lead.

Quick specs:

• Type: Low-profile HV digital servo
• Category: Low-profile servo
• Suggested applications: Touring car, Serpent car, fixed-wing aircraft, 1/10 RC car
• Motor type: Coreless motor
• Operating voltage: 4.8-8.4V
• Stall torque: 14 kg.cm / 194 oz-in @ 6.0V, 18 kg.cm / 250 oz-in @ 8.4V
• Speed: 0.07 sec/60 deg @ 6.0V, 0.09 sec/60 deg @ 8.4V
• Dead band: 2us
• Neutral position / frequency: 1500us / 330Hz
• Remote control angle: 90-120 deg +/-2 deg
• Full range angle: 180 deg +/-2 deg
• Bearings: 2BB
• Connector lead: JR 260mm
• Dimensions: 40x20x28.3mm
• Weight: 55g