MTB specific gyro/rotor kit. Includes Aeon Rotor, Rotor Plate, Rotor Tabs and cables. Designed to work with modern alloy MTB frames which need a larger inner diameter than a traditional BMX rotor. The AEON rotor features a 54mm inner diameter to work with all Radio MTB frames and most modern DJ/Slopestyle frames (with 46mm wide upper Head Tube Diameter and 61-66mm wide tab to tab distance). Fully cnc machined from 6061-T6 alloy with a super smooth and lightweight self-lubricating bushing for effortless spinning. Tested by the Radio Bikes MTB team for 4 years. Still spinning. Material: 6061-T6 alloy, forged Size: Rotor - 6061-T6 alloy, full cnc Lever- 6061-T6 alloy, forged cable: 1.5mm slick, pre-stretched stainless inner wire housing: 5mm compressionless, poly-slip lining, linear strands, Kevlar protected Features:  • PRO level MTB specific rotor/gyro kit• everything you need to ride a rotor/gyro setup on your MTB frame• includes rotor, rotor plate, rotor tabs and cables (upper & lower)• 54mm rotor inner diameter• 73mm upper / 63mm lower cable circulation• designed for alloy MTB/DJ/Slopestyle frames• fork steerer tube needs 25mm extra length between headset top cap and stem• Radio recommends you to have your Aeon MTB rotor installed by a professional mechanic• designed for use with any BMX style brake lever including the Radio Aeon Brake Lever