fast smooth robotics platforms

[NeuroRobots]

Hi,

I require a very fast robotics platform that can quickly reach speeds of 3-5m/s. I have built a platform that can achieve this using brushless helicopter motors and a custom gearbox providing a reduction to increase torque. My problem is that this robot has too much vibration.

I am wondering if anyone can suggest a pre-made robotics platform that can provide the speed im looking for but is also well built, relatively silent and vibration free. Something similar to the Segway rmp200 platform (that one is very expensive and not fast enough).

thanks