From Evil –

The Insurgent LS is available as a mixed-wheel MX or full 27.5″ platform. Small wheels with a 180mm fork for mind-melting laps, or MX with a 170mm fork for added stability, steeper lines, and plowing downstream. 27.5 never died. It just quit caring what people think.

https://www.evil-bikes.com/products/insurgent-ls