On back order until approximately November 15, 2021 

You can substitute  the athena variator, which also come with a torque spring!

here is the link:  https://www.zumasrusstore.com/collections/zuma-50f-parts/products/variator-complete-athena-50f

Poilini Variator for the Zuma 50F four Stroke Scooter

The Polini variator is great for upgrading your Yamaha  Zuma 50 4-Stroke. One of the best variators on the market, the Polini version adds performance accross the entire power band from take off to top speed.