Material: 6061-T6 alloy, full cnc machined   Size: 54mm inner diameter, 73mm upper / 63mm lower cable circulation, (to fit Radio Aeon rotor plate and removable rotor tabs on Radio MTB frames and other MTB frames)   Weight: 22.7g (0.8oz)   Features:  • PRO level MTB specific rotor/gyro• 54mm inner diameter• 73mm upper / 63mm lower cable circulation• fits Radio Aeon rotor plate and removable rotor tabs on Radio MTB frames (and other MTB frames)• Full CNC machined from 6061-T6 alloy • Super low friction self lubricating bushing for minimal resistance• designed for alloy MTB/DJ/Slopestyle frames• fork steerer tube needs 25mm extra length between headset top cap and stem• designed for use with removable gyro tabs with distance of 61-66mm (Radio Frames use 63mm)• Radio recommends you to have your Aeon MTB rotor installed by a professional mechanic• designed for use with Radio AEON rotor cables and lever• available as a whole kit with rotor, rotor plate, cables and rotor tabs