NOTES FROM LUKE: Containment Crew Cyclone flywheels, perfect for high crush applications. I can't tell you how excited I am to be carrying a USA made flywheel! These are machined in the USA and created by the crew at containment crew (I can make puns too). I'm very impressed by the quality and consistency of these flywheels. These are meant for high torque motors such as ReVAMPed fangs and all 180 motors I sell.