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

The HobbyStar HCS-4520 is the cleaner race/general version of the 33 kg-class coreless servo, aimed at 1/8 off-road steering, 1/10 performance builds, and other standard-size applications where torque and response matter more than giant travel or waterproof crawling manners.

Comparable high-torque standard HV servos are commonly positioned for 1/10 to 1/8 surface applications, with 1/8 buggy, truggy, SCT, monster truck, and performance steering as the real buyer language. The HCS-4520 fits that lane well: 27 kg.cm / 375 oz-in at 6.0V, 33 kg.cm / 458 oz-in at 7.4V, 0.11 sec/60 deg at 7.4V, coreless motor, and a 120 degree remote control angle.

This is the non-waterproof 120 degree option. That makes it easier to explain for race/general steering than the larger-travel waterproof crawler version. If the build lives in puddles or wants crawler-style waterproofing, choose the waterproof model instead. If it wants a standard-size coreless HV steering servo with sensible travel, this is the better story.

Quick specs

• Type: Standard-size HV digital servo
• Category: Coreless HV servo
• Suggested applications: Monster truck, off-road climbing/trail-style car, truck, 1/10 and 1/8 RC car
• RCJuice positioning: 1/8 off-road and performance steering; non-waterproof race/general version
• Motor type: Coreless motor
• Operating voltage: 4.8-8.4V
• Stall torque: 27 kg.cm / 375 oz-in @ 6.0V, 33 kg.cm / 458 oz-in @ 7.4V
• Speed: 0.14 sec/60 deg @ 6.0V, 0.11 sec/60 deg @ 7.4V
• Dead band: 2us
• Neutral position / frequency: 1500us / 330Hz
• Remote control angle: 120 deg +/-2 deg
• Bearings: 2BB
• Connector lead: JR 260mm
• Dimensions: 40.5x20x37.5mm
• Weight: 58g
• Waterproof: No

The HobbyStar HS-6912HV servo is a large-scale servo with brutal-torque for 1/5-scale applications. With all-steel gears for reliable operation and an aluminum center-case to aid in cooling and add strength, this is an ideal servo for 1/5 applications. Includes heavy-duty aluminum servo arm.

Specifications:

• Speed @4.8V: 0.20 sec
• Speed @7.4V: 0.16 sec
• Torque @4.8V: 778 oz/in
• Torque @7.4V: 972 oz/in
• Pulse/Frequency: 1500µ/330Hz
• Dimensions: (LxWxH) 65.7x30x57mm
• Weight: 200g
• Bearing: Dual ball bearing
• Gears: Steel
• Motor: Digital Core
• Input Voltage: 6.0V-7.4V
• Output Shaft: 15T spline (Savox-style)
• Wire Harness Length: 260mm 

The HobbyStar HBW-4724HV servo is a Brushless, HV-capable servo (4.8V-8.4V range) with killer speed and un-real torque. Fully-waterproof design combined with all-steel gears for reliable operation, and an aluminum center-case to aid in cooling. This is an ideal servo for all-weather applications where speed is needed and torque is mandatory!

Specifications:

• Speed @6.0V: 0.11 sec
• Speed @8.4V: 0.08 sec
• Torque @6.0V: 347 oz/in
• Torque @8.4V: 486 oz/in
• Pulse/Frequency: 1500µ/330Hz
• Dimensions: (LxWxH) 40.5x20x37.5mm
• Weight: 67g
• Bearing: Dual ball bearing
• Gears: Steel
• Motor: Brushless
• Input Voltage: 4.8V-8.4V
• Output Shaft: 25T spline
• Wire Harness Length: 260mm 

The HobbyStar HBW-4717HV servo is a Brushless, HV-capable servo (4.8V-8.4V range) with amazing speed and torque. Fully-waterproof design combined with all-steel gears for reliable operation, and an aluminum center-case to aid in cooling. This is an ideal servo for all-weather applications where torque and speed are both priorities!

Specifications:

• Speed @6.0V: 0.08 sec
• Speed @8.4V: 0.06 sec
• Torque @6.0V: 278 oz/in
• Torque @8.4V: 389 oz/in
• Pulse/Frequency: 1500µ/330Hz
• Dimensions: (LxWxH) 40.5x20x37.5mm
• Weight: 67g
• Bearing: Dual ball bearing
• Gears: Steel
• Motor: Brushless
• Input Voltage: 4.8V-8.4V
• Output Shaft: 25T spline
• Wire Harness Length: 260mm 

The HobbyStar HCS-4529 servo provides over 400oz/in of torque when operated at 8.4V (can be run down to 4.8V). All-steel gears for reliable operation and an aluminum center-case to aid in cooling and add strength this is a perfect servo for 1/10 and 1/8 applications where torque is a must. 

Specifications:

• Speed @4.8V: 0.18 sec
• Speed @6.0V: 0.15 sec
• Speed @8.4V: 0.11 sec
• Torque @4.8V: 292 oz/in
• Torque @6.0V: 361 oz/in
• Torque @8.4V: 417 oz/in
• Pulse/Frequency: 1500µ/330Hz
• Dimensions: (LxWxH) 40.5x20x37.5mm
• Weight: 58g
• Bearing: Dual ball bearing
• Gears: Steel
• Motor: Digital Coreless
• Input Voltage: 4.8V-8.4V
• Output Shaft: 25T spline
• Wire Harness Length: 260mm 

The HobbyStar HCS-4521WP servo features a fully waterproof design and massive-torque (444oz/in @7.4V) for the ultimate crawler servo. All-steel gears for reliable operation and an aluminum center-case to aid in cooling and add strength this is a perfect servo for crawling rig. 

Specifications:

• Speed @4.8V: 0.16 sec
• Speed @6.0V: 0.13 sec
• Speed @7.4V: 0.10 sec
• Torque @4.8V: 287 oz/in
• Torque @6.0V: 347 oz/in
• Torque @7.4V: 444 oz/in
• Pulse/Frequency: 1500µ/330Hz
• Dimensions: (LxWxH) 40.5x20x37.5mm
• Weight: 58g
• Bearing: Dual ball bearing
• Gears: Steel
• Motor: Digital Coreless
• Input Voltage: 4.8V-7.4V
• Output Shaft: 25T spline
• Wire Harness Length: 260mm 

The HobbyStar HCS-4519 servo is a high-speed, high-torque servo that is high-voltage capable. Combined with all-steel gears for reliable operation and an aluminum center-case to aid in cooling and add strength this is a perfect servo for 1/10, 1/8 and aircraft applications. 

Specifications:

• Speed @4.8V: 0.12 sec
• Speed @6.0V: 0.09 sec
• Speed @8.4V: 0.08 sec
• Torque @4.8V: 180 oz/in
• Torque @6.0V: 222 oz/in
• Torque @8.4V: 278 oz/in
• Pulse/Frequency: 1500µ/330Hz
• Dimensions: (LxWxH) 40.5x20x37.5mm
• Weight: 58g
• Bearing: Dual ball bearing
• Gears: Steel
• Motor: Digital Coreless
• Input Voltage: 4.8V-8.4V
• Output Shaft: 25T spline
• Wire Harness Length: 260mm 

Some trucks do not need a delicate racing servo. They need torque, waterproofing, and enough authority to move big tires without turning the steering into a committee meeting. The HobbyStar HS-4335LV is the stronger waterproof LV option in this group, rated at 35 kg.cm / 486 oz-in at 6.0V.

It is a natural fit for monster trucks, off-road climbing/trail-style cars, trucks, and 1/10 or 1/8 RC car use. Compared with the HS-4325LV, this is the better pick for heavier 1/10 bashers, monster trucks, and customers who mostly care about torque-per-dollar. It also needs a 3A or higher BEC, which is worth taking seriously.

Quick Specs

• Type: Waterproof standard-size digital servo
• Category: Core LV standard servo
• Suggested applications: Waterproof monster truck, off-road climbing/trail-style car, truck, 1/10 and 1/8 RC car
• Motor type: Core motor
• Operating voltage: 4.8-6.0V
• Stall torque: 29 kg.cm / 403 oz-in @ 4.8V, 35 kg.cm / 486 oz-in @ 6.0V
• Speed: 0.16 sec/60 deg @ 4.8V, 0.14 sec/60 deg @ 6.0V
• Dead band: 4us
• Neutral position / frequency: 1500us / 330Hz
• Remote control angle: 90-120 deg +/-2 deg
• Full range angle: 180 deg +5 deg
• Bearings: 2BB
• Connector lead: JR 260mm
• Dimensions: 40.5x20x40.5mm
• Weight: 62g
• BEC requirement: 3A or higher current
• Waterproof: Yes; no IP rating provided

The HobbyStar HS-4305LV servo is a high-torque servo with great speed at a terrific price. Combined with all-steel gears for reliable operation and an aluminum center-case to aid in cooling and add strength, this is an ideal servo for 1/10, 1/8 and fixed-wing applications. 

Specifications:

• Speed @4.8V: 0.14 sec
• Speed @6.0V: 0.11 sec
• Torque @4.8V: 167 oz/in
• Torque @6.0V: 222 oz/in
• Pulse/Frequency: 1500µ/330Hz
• Dimensions: (LxWxH) 40.5x20x40.5mm
• Weight: 57g
• Bearing: Dual ball bearing
• Gears: Steel
• Motor: Digital Core
• Input Voltage: 4.8V-6.0V
• Output Shaft: 25T spline
• Wire Harness Length: 260mm 

If the stock steering servo in your 1/10 truck feels lazy, vague, or mildly offended by big tires, the HobbyStar HS-4325LV is the simple waterproof upgrade. It is rated at 26 kg.cm / 361 oz-in at 6.0V, with a standard-size 40.5x20x40.5mm case for common RC steering setups.

This is the value waterproof torque servo in the new HobbyStar group. It is a natural fit for monster trucks, off-road climbing/trail-style trucks, 1/10 RC cars, and some 1/8 RC applications where a standard LV servo makes sense. It runs on normal 4.8-6.0V receiver power, so you get more steering muscle without rebuilding the car around HV electronics.

Quick specs:

• Type: Waterproof standard-size digital servo
• Category: Core LV standard servo
• Suggested applications: Waterproof monster truck, off-road climbing/trail-style car, truck, 1/10 and 1/8 RC car
• Motor type: Core motor
• Operating voltage: 4.8-6.0V
• Stall torque: 24 kg.cm / 333 oz-in @ 4.8V, 26 kg.cm / 361 oz-in @ 6.0V
• Speed: 0.22 sec/60 deg @ 4.8V, 0.18 sec/60 deg @ 6.0V
• Dead band: 4us
• Neutral position / frequency: 1500us / 330Hz
• Remote control angle: 90-120 deg +/-2 deg
• Bearings: 2BB
• Connector lead: JR 260mm
• Dimensions: 40.5x20x40.5mm
• Weight: 57g
• Waterproof: Yes; no IP rating provided

The HobbyStar HCS-4502 servo is a super-speed digital unit with excellent torque. Combined with all-steel gears for reliable operation and an aluminum center-case to aid in cooling and add strength this is a perfect servo for most 1/10 competition applications. 

Specifications:

• Speed @4.8V: 0.08 sec
• Speed @6.0V: 0.06 sec
• Speed @8.4V: 0.05 sec
• Torque @4.8V: 111 oz/in
• Torque @6.0V: 139 oz/in
• Torque @8.4V: 180 oz/in
• Pulse/Frequency: 1500µ/330Hz
• Dimensions: (LxWxH) 40.5x20x37.5mm
• Weight: 58g
• Bearing: Dual ball bearing
• Gears: Steel
• Motor: Digital Coreless
• Input Voltage: 4.8V-8.4V
• Output Shaft: 25T spline
• Wire Harness Length: 260mm 

The HobbyStar HS-4320HV servo is a HV only (6.0-8.4V) servo with incredible torque. Combined with all-steel gears for reliable operation and an aluminum center-case to aid in cooling this is an ideal servo for applications where torque is the priority. 

Specifications:

• Speed @6.0V: 0.17 sec
• Speed @8.4V: 0.16 sec
• Torque @6.0V: 337 oz/in
• Torque @8.4V: 416 oz/in
• Pulse/Frequency: 1500µ/330Hz
• PWM Voltage: 3.3V-5.0V
• Dimensions: (LxWxH) 40.5x20x40.5mm
• Weight: 62g
• Bearing: Dual ball bearing
• Gears: Steel
• Motor: Digital Core
• Input Voltage: 6.0V-8.4V
• Output Shaft: 25T spline
• Wire Harness Length: 260mm 

The HobbyStar HS-4300HV servo is a HV only (6.0-8.4V) servo with tremendous speed and torque. Excellent for 1/10 competition applications. Combined with all-steel gears for reliable operation and an aluminum center-case to aid in cooling this is an ideal servo for applications where torque is the priority. 

Specifications:

• Speed @6.0V: 0.09 sec
• Speed @8.4V: 0.07 sec
• Torque @6.0V: 112 oz/in
• Torque @8.4V: 139 oz/in
• Pulse/Frequency: 1500µ/330Hz
• PWM Voltage: 3.3V-5.0V
• Dimensions: (LxWxH) 40.5x20x40.5mm
• Weight: 58g
• Bearing: Dual ball bearing
• Gears: Steel
• Motor: Digital Core
• Input Voltage: 6.0V-8.4V
• Output Shaft: 25T spline
• Wire Harness Length: 260mm 

The HobbyStar HS-4309LV servo is a super-speed servo with great torque at a terrific price. Combined with all-steel gears for reliable operation and an aluminum center-case to aid in cooling and add strength, this is an ideal servo for 1/10 applications. 

Specifications:

• Speed @4.8V: 0.09 sec
• Speed @6.0V: 0.07 sec
• Torque @4.8V: 106 oz/in
• Torque @6.0V: 139 oz/in
• Pulse/Frequency: 1500µ/330Hz
• Dimensions: (LxWxH) 40.5x20x40.5mm
• Weight: 57g
• Bearing: Dual ball bearing
• Gears: Steel
• Motor: Digital Core
• Input Voltage: 4.8V-6.0V
• Output Shaft: 25T spline
• Wire Harness Length: 260mm