T-REX 470L Tail Ratio Upgrade Kit

This product is discontinued and will not be restocked.  Replacement belts can be purchased from Misumi for about $10 each - 548MXL3.2 USA Buy HereGermany Buy HereElsewhere - Check for Misumi Presence In Your CountryThe STL of the pulley can be downloaded here. Say goodbye to tail kicks and blowouts on your T-REX 470L.  With a larger 67T front tail pulley and a longer belt, this upgrade increases your tail ratio from 3.7:1 to a much more reasonable 4.5:1, greatly increasing your tail power and authority without the need for long tail blades that reduce ground clearance.  It's easy to install and will greatly improve your flying experience, especially at lower RPMs. Testing has shown this setup is best suited to use with the RotorTech 71mm Tail Blades.  Running other tail blades, such as the ALIGN 69mm, will not yield optimal results due to their inferior airfoil and tapering shape.  Do not use the ALIGN 74mm tail blades with this kit, the RPM is too high and you're likely to see vibrat