The Tekin RS Pro Black Edition Sensored Brushless ESC/Gen4 Spec R Motor Combo is the ultimate choice for racers looking for an ultra low resistance spec racing combo, that can get them to the top of the podium at the highest level of competition. Tekin’s SPEC-R brushless motors are engineered for award-winning performance. Utilizing the best materials available Tekin redesigned the SPEC-R to cut weight while reducing resistance, resulting in a purebred Spec racing machine. On Road or Off, the SPEC-R handles all situations, providing smooth power and control across all RPMs when you need it. 

The RS PRO Black Edition was specifically designed for 1S-2S Spec Classes and Drag Racing to take full advantage of the ULR circuit design. ULR FlexWire is included with every Black Edition ESC. Pair the RS PROs with a SPEC-R motor for the ultimate Ultra Low Resistance system.

• Motor:
• 60 Degrees Adjustable Timing Advance
• SPEC Racing Specific Design
• CNC Machined 6061-T6 Billet Aluminum Heat Sink Can
• Neodymium Sintered Magnet
• Precision Engineered for Maximum Energy Conversion
• High Purity Copper Windings Maximize Conductivity
• Low Resistance, High Power Solder Tabs
• Sensored System Ready
• Anodized Endbell Plates Maximize Corrosion and Wear Resistance
• High RPM Precision Bearings
• Oversized Front Bearing
• Solder-less Sensor PCB Replacement
• Legal in Major Governing Race Bodies
• ROAR Approved
• ESC:
• ULR: Ultra Low Resistance Design
• Specifically Designed for Spec & Stock Racing
• QuickTune™ One Touch Programming
• Adjustable Throttle and Brake Frequencies *
• High Voltage Programmable BEC *
• HotWire™ Programming Port *
• Data Logging Capability *
• Sensor Checker
• On-Board Temperature Indicator
• ESC Self Diagnostics with Error Codes
• Fully Proportional Forward/Brake/Reverse
• Brushless and Brushed Motor Drive
• Sensored or Sensorless Operation
• LiPo Safe with Custom Voltage Cutoffs
• Sensor Plug for Precise Commutation
• Lightweight Chassis Design
• HDAC: High Density Copper PCB's
• Ultra-smooth and Precise Throttle and Braking Control

*NOTE: requires HotWire™ sold separately.  

• Motor:
• Input Voltage: 1-2S LiPo
• Weight: 5.1oz / 145g
• Shaft Size: 3.18mm / 1/8”
• Motor Length: 50.25mm / 1.978”
• Motor Diameter: 35.85mm / 1.40”
• Max Operating Temperature: 180F / 82C
• Bearing Dimensions: Front 4x13x5mm / Rear 1/8x38/5/32”
• Rotor Size: 13.5T: 12.5mm BLUE
• Rebuildable: Yes
• ESC:
• Controls: Forward/Brake/Reverse
• Input Voltage RS Pro : 1-3S LiPo / 4-9S NiMH-NiCD
• Motor Limit Brushless Mode 2S: 36mm Can - 2-Pole
• Motor Limit Brushless Mode 3S: 36mm Can - 2-Pole
• Motor Limit Brushed 2S: 36mm Can - 540 & 550
• Motor Limit Brushed 3S: 36mm Can - 540 & 550
• Amperage: 480Amps per phase*
• ON Resistance: .000096ohm*
• BEC: 6.0 / 7.4V @ 5.5amps
• Weight: 1.23oz / 35g
• Dimensions: 1.0 x 1.3 x .68in / 24.5 x 33 x 17.25mm