RM650S Maifield Edition High Speed Brushless HV Servo, 0.08s / 535oz-in @ 7.4V

Ryan Maifield has earned his place among RC racing’s greatest champions, and now the ProTek RC RM650S "Maifield Edition" lets you bring that same winning mindset to your own build. With lightning-fast brushless performance, race-winning precision, and podium-ready consistency, this servo is built for racers who demand the fastest steering response on the track. Ryan Maifield has spent more than 25 years at the highest level of RC racing, earning over 30 ROAR National Championships and multiple IFMAR World Championship titles along the way. His unmatched consistency, relentless dedication, and winning mindset have made him one of the most respected names in the hobby. The ProTek RC RM650S "Maifield Edition" High Speed Brushless Servo is built around the performance standards Ryan demands, giving racers the opportunity to follow in the footsteps of a true legend and trust the same equipment that helps him reach the top step of the podium! Built for racers who value speed and precision above all else, the RM650S delivers incredibly fast steering response for today's demanding 1/10 and 1/8 racing classes. As a refined version of the proven and trusted ProTek RC 170SBL servo, the RM650S builds on a championship-tested foundation with advanced brushless technology, improved efficiency, and enhanced race-day performance. A high-performance brushless motor provides smooth, accurate control and long-lasting reliability, while the high-voltage electronics produce blistering 0.08-second transit speed with up to 535 oz-in of torque. Whether you're carving perfect racing lines or making split-second corrections, the RM650S gives you the edge to stay ahead of the competition. Every detail of the RM650S is engineered for durability and confidence on race day. The special black anodized full aluminum case features a USA flag laser-etched design and Ryan Maifield’s initials, creating a signature look that celebrates the champion behind the performance. Beyond its exclusive appearance, the aluminum construction offers outstanding strength and efficient heat dissipation, while full metal gears, dual ball bearings, and detachable servo leads make it as practical as it is durable. Tech Note: If you experience glitching or poor performance while using a Futaba transmitter, you must turn off BLS mode. BLS mode is only compatible with Futaba BLS type servos.

Ryan Maifield Signature high-speed race servo.

Refined version of the proven and trusted ProTek RC 170SBL servo.

Special anodized aluminum case with USA flag laser-etched design and Ryan Maifield initials.

Designed for 1/8 nitro and electric off-road racing.

Brushless motor delivers ultra-fast, precise steering.

Up to 535 oz-in of torque with exceptional steering response.

High-voltage compatible for maximum performance.

Full black anodized aluminum case with heat-sink center section.

Full metal gears and dual ball bearings for lasting durability.

Includes detachable 150mm and 300mm servo leads with gold-plated connectors.

Blazing-fast response with speeds down to 0.08 seconds at 7.4V.

Application: 1:10/1:8 Scale

Operating Voltage: 6.0V - 8.4V

Operating Temperature: 14° to 140° F (-10 to +60° C)

Operating Speed @ 6.0V: 0.09/60° sec

Operating Speed @ 7.4V: 0.08/60° sec

Dynamic Torque @ 6.0V: 458 oz-in (32.9 kg-cm)

Dynamic Torque @ 7.4V: 535 oz-in (38.5 kg-cm)

Motor Type: Brushless Digital

Output Shaft: 25T

Gears: Metal

Weight: 2.53oz (72g)

Pulse/Frequency: 1520s / 333hz

Dimensions: 1.57x0.79x1.48in (40x20x37.8mm)

Length (Bottom to Mount): 1.11in (28.4mm)

(1) RM650S "Maifield Edition" High Speed Brushless Servo

(1) Aluminum Clamping Servo Horn

Servo Hardware and Grommets

Brand: ProTek RC

MPN: PTK-RM650S

Added: 2026 - September

Status: Pending

Discount Eligibility: Discount Eligible

SKU: PTK-RM650S