When sourcing golf trolley motors, you must prioritize Brushless DC (BLDC) motors over brushed versions due to their higher efficiency, lower noise levels, and longer lifespan. Key specs include a power rating typically between 150W to 230W for standard trolleys, a high torque output to handle steep inclines, and an IP54 or IP65 waterproof rating to ensure functionality in rainy conditions. Additionally, verify the gearbox ratio (often 20:1 or 25:1) to ensure the motor provides the correct balance between speed and climbing power.