Broke-in Sprint Dash Motor [Measurement Data (1-minute measurement)] 3V, Forward Rotation: 38700 RPM / 1.22A *Regular oil maintenance is required. [Shipping] * Yu-Packet Post Mini [Information] * The listed RPM and current values may fluctuate depending on various environmental factors such as ambient temperature, humidity, and the motor's temperature. Please use these values as a reference only. * We are unable to answer questions regarding motor break-in methods. Thank you for your understanding. * We kindly request that you refrain from providing feedback on running results or numerical evaluations (including RPM) after purchase. * Please be aware that this is a used item and may have minor scratches and signs of use. * Returns and refunds are not accepted. Please purchase only if you understand and agree to the above conditions. Thank you for your consideration.