I have run this motor three times and boy is it crazy. It's like, stupid fast. I run it with a GForce 5000 mah 30C 2s and it pushes my ecx circuit to 41 MPH, 21/87 and runs at a steady 140 degrees. I could gear it to 50+ or 80 with a 3s. I love this motor, and the color is a pretty blue that's just like the picture. I highly recommend this!