Description

Ultimate RSX8 1/8 Brushless Servo 37kg / 0.075s with UR1814-25 Servo Horn – UR4701-T

The Ultimate Racing RSX8 is a high-performance brushless servo designed for 1/8 scale off-road RC cars. With 37 kg of torque and 0.075 s response time, it delivers the precision, power, and reliability demanded by top-level racers. Suitable for both steering and throttle/brake functions.

It features a sleek black anodized aluminum top case and a red bottom cover, both with integrated cooling fins for effective heat dissipation. An improved O-ring design seals against moisture through screw holes, enhancing durability.

Included in the box:

• UR1814-25 – 25T throttle servo horn
• 4x M3x14 mm countersunk screws (no washers needed)
• 2x flat rubber mounting pads for vibration and chassis isolation
• M3 cap screw for servo horn
• Reusable EVA storage box with Ultimate logo

Specifications:

• Motor type: Brushless
• Gears: Titanium & steel
• Voltage: 6.0V – 8.4V
• Speed: up to 0.075 s @ 8.4V
• Torque: up to 37.0 kg.cm @ 8.4V
• Dual ball bearings
• Pulse width control / 330Hz
• Dimensions: 40 x 20 x 38 mm
• Weight: 81g
• Connector: JR, 300mm wire

Highlights:

• Ideal for 1/8 competition RC buggies and truggies
• Super fast, high torque response
• Waterproof and vibration-resistant build
• Premium materials and full installation kit included