Tekin brand Tekin RS Gen 2 Spec D2 Brushless Electronic Speed Control and Tekin Gen 2 Redline 17.5 Turn RPM Brushless Motor. FEATURES: RS Gen 2 Spec D2 ESC (TEKC1155); Compatible with sensored, sensorless, brushless, and brushed motors True ROAR spec mode only, no timing or boost features available High voltage programmable Battery Eliminator Circuit (BEC) HotWire PC interface for advanced programming and updating, EZ access programming port (HotWire Interface (TEKM1450), and Gen 2 Adaptor (TEKM3825) required) Forward, brake, and reverse operation D2 Dual Drive Mode technology On-board temperature indicator Sensor plug for precise commutation with all motors Gold plated solder posts Pit tune mode HDAC: High Density Copper PCB's Self test diagnostics and factory reset DGF2 Digital Glitch Filtering V2 QuickTune programming with one-touch radio calibration 17.5T Redline Gen2 RPM Motor (TEKC2404); Specifically designed for 1/12 scale 1S LiPo and stock racing RPM version tweaked to provide extra edge in stock racing Higher RPM output and lighter that non-RPM Gen2 versions Legal in major governing racing bodies Dual plug sensor wire harness for all sensored and sensoreless systems CNC machined T 6061 billet aluminum heatsink can with anodized endbell plates High RPM precision bearings High purity copper windings Adjustable timing Neodimium sintered magnet 120 day limited warranty through Tekin on both components beginning at date of purchase YOU WILL RECEIVE: RS Gen 2 Spec D2 Brushless ESC with Instructions, Motor and Receiver Wires, Gen 2 Redline 17.5 RPM Motor with Instructions, Capacitor, two Zip Ties, two Mounting Pads SPECS: ESC Input Voltage: 4-7 cells, 2S LiPo BEC: 6.0V, 3.7amps Brushless Mode Motor Limit: 13.5 turn, 540 2-pole (36mm) Brushed Mode Motor Limit Forward Only: 20 turn silver can Brushed Mode Motor Limit Reverse: 20 turn silver can Max Current: 120amps per phase Timing Profiles: 7 choices on-board Brushed Modes: Fwd Only, Fwd/Rev, Rev Delay Brushless Modes: Fwd Only, Fwd/Rev, Rev Delay Dimensions: 1.0 x 1.3 x .51 (25.4 x 33 x 12.9mm) Weight: .80oz (22.5g) Motor Weight: 6.2oz (177g) Shaft Dimensions: 1/8 x 0.60 (3.2 x 15.3mm) Motor Diameter: 1.40 (35.85mm) Motor Length: 2.03 (51.8mm) Bearing Dimensions: front: 4x13x5mm rear: 1/8x3/8x5/32 kV: 2400 Rotor: 12.3mm jxs 12/19/13 ir/jxs