Align T-rex 470l Tuning Pulley: Tail Ratio Upgrade
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Description
A tuning pulley for the Align T-rex 470l.
With this larger pulley, you increase the tail rotor speed, which can fix tail wag and blowouts.
Especially helpful at low RPMs to keep the tail crisp.
I fly this pulley with a 3s Lipo and 74mm tail rotor blades, and couldn't wish for better performance.
You also need 3 of the original screws from the original pulley, and a longer belt. This should be, for example, a 4400 MXL belt (2.032mm), closed with 550 teeth, width 1/8" (3.125mm).
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