the spes and no it cant handle a 11x2 15 turn is its limit
Traxxas XL-5 Forward and Reverse Electronic Speed Control with connectors and instruction manual

REQUIRES: Connecting to motor and battery of vehicle

SPECS: On Resistance Forward: 0.007 Ohms On Resistance Reverse: 0.014 Ohms Peak Current-Fwd/Rev: 100A/60A Braking Current: 60A Continous Current: 14A BEC Voltage: 6.0V DC BEC Current: 1A Power Wire: 14AWG/ 5" Input Harness Type: 26AWG/ 9" Transistor Type: MOSFET PWM Frequency: 1600Hz Thermal Protection: Thermal Shutdown Single Button Setup: Yes Motor Limit: 15T (540 Size), 12T (550 Size) Input Voltage: 4-8 Cells (4.8 to 9.6V DC) Weight: 3.07oz (87g) Profile Selection: Sport Mode 100% FWD, 100% Brakes, 100%REV Race Mode 100% FWD, 100% Brakes, No REV Training Mode 50% FWD, 100% Brakes, 50% REV