The RS GEN2 brushless speed control is the next generation in intelligent operating motor drive technology. Continuing the proven award winning legacy of the RS family, the RS GEN2 is fitted with todays state of the art components. The RS GEN2 delivers what racers require; reliability, precise control and unmatched power handling capability. Ultra-smooth and Precise Throttle and Braking Control Compatible with Sensored/Sensorless Brushless and Brushed Motors Easily Access Programming, Anywhere, Anytime Datalogging Capability High Voltage Programmable BEC EZ Access HotWire Programming Port HotWire PC Interface for Advanced Programming and Updating D2: Dual Drive Mode Technology On-Board Temperature Indicator HDAC: High Density Copper PCB's Sensor Plug for Precise Commutation with all Motors Gold-plated Solder Posts for Easy Wire Replacement Self Test Diagnostics and Factory Reset Pit Tune Mode DGF2: Digital Glitch Filtering V2 QuickTune™ Programming One-Touch Radio Calibration Tekin's second generation motors carry forward engineering principles and performance benchmarks set by the Tekin Redline name. The Gen2 Redline Sensored Motor incorporates the latest technology advancements in brushless motor design and manufacturing, giving you the torque and RPMs you want when you need it. On Road or Off, Tekin's Gen2 Sensored motors handle your demands and deliver smooth power across all RPMs. With the Gen2 advancement comes the Redline Gen2 RPM series motors. Available in 13.5, 17.5 and 21.5 turns, the RPM motors have been tweaked to provide that extra edge needed in stock racing competition. Not only do the RPM versions offer a higher overall RPM output, they are also lighter than their Gen2 counterparts. Specifically designed for 1/12, 1S LiPo and stock racing, the Gen2 RPM motors give you the edge over the competition. The Gen2 modified group of motors also carry significant changes and are tuned specifically for modified racing. The 10.5 through 6.5 turn motors all come standard with a 13mm rotor and the 5.5 through 2.5 turn are equipped with a 13mm High Torque rotor, providing the horsepower needed in modified racing. CNC Machined T 6061 Billet Aluminum Heatsink Can Neodymium Sintered Magnet Precision Engineered for Maximum Energy Conversion High Purity Copper Windings Maximize Conductivity Low Resistance, High Power Solder Tabs Dual-Plug Sensor Wire Harness for all Sensored and Sensorless systems Anodized Endbell plates maximize corrosion and wear resistance High RPM precision bearings Rebuildable Design Solderless Sensor PCB replacement Adjustable Timing Weight: 6.3oz (180g) / RPM version: 6.2oz (177g) Shaft Dimensions: 3.2mm (1/8") x 15.3mm Motor Diameter: 35.85mm / 1.40" Motor Length: 51.8mm / 2.03" Bearing Dimensions: front: 4x13x5mm rear: 1/8x3/8x5/32"