Tekin brand Tekin RSX Sensored/Sensorless Electronic Speed Control with the 8.5T Redline Gen 2 Sensored Brushless Motor. FEATURES: RSX ESC, TEKM1158 Operates brushed or brushless, sensored or sensorless motors LiPo safe with custom voltage cutoffs HotWire PC programming port (Hotwire not included & must be purchased separately, TEKM1451) Datalogging capability D2 Dual Drive Mode technology On-board temperature indicator Sensor plug for precise commutation with all motors High speed fan for maximum cooling Programming features include; High voltage 6.0/7.4V BEC (battery eliminator circuit) 13 step drag brake/brake/reverse strength Current limiter (none + 12 steps) Neutral width (13 steps) Timing Profiles (5 preset - 2 custom)* Adjustable throttle and brake minimums Custom throttle curves Motor/Reverse Type: Brushless, Brushed, No Rev, Rev Delay Voltage cutoffs (none, 2S, 3S, Custom) Timing Boost and Turbo when used with Hotwire ROAR Race Spec Blinky Mode Save, Load and Share data log and custom ESC setup files* *Requires Hotwire (sold separately) 8.5T Redline Gen2 Sensored Brushless Motor, TEKC2410 Ideal for on or off-road applications 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 120 day limited warranty through Tekin beginning at date of purchase YOU WILL RECEIVE: RSX ESC with Fan, two Zip Ties, Capacitor, 12AWG Motor Wires, On/Off Switch, Receiver Connector, Instructions, Sensor Wire and 8.5T Redline Gen2 Sensored Brushless Motor SPECS: ESC; Input Voltage: 4-9 Cells, 2S-3S LiPo BEC: 6.0V/7.4V, 5.5amps Motor Limit Brushless Mode 2S: 2.5 Turn 2-pole, 4lb chassis Motor Limit Brushless Mode 3S: 8.5 Turn 2-pole, 4lb chassis Motor Limit Brushed 2S: 6 Turn, 36mm Can Motor Limit Brushed 3S: 12 Turn, 36mm Can Max Current: 180amps 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: 1.22 x 1.46 x .82 (31.2 x 37.2 x 21mm) Weight: 1.5oz (42g) 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: 5,350 Rotor: 13mm jxs 02/21/14 ir/jxs