On the February 10, 2025 update, one of the bug fixes was "Fixed an issue where the Hitcher chassis would break when activating Sprint Reactor". The chassis technically is now fixed in terms of not breaking by becoming too loose at the joints when the chassis increases its speed especially via gears such as sprint reactor or recon mode.
However, since this update, the chassis has now gone the opposite side, and it is now way too stiff at the joints, which is especially noticeable when you attempt to increase its speed whether by movement tech, wave dashing, or using gears such as sprint reactor or recon mode. When running with increased speeds beyond its normal max, it looks like a toy soldier marching.
In this comparison video included, I show Hitcher chassis vs a Fury chassis. Fury chassis moves much more fluidly and naturally along its joints while Hitcher is super tight and almost like goose-stepping. (Hitcher and Fury chassis have very very similar speed, acceleration stats and they're both classified as heavy chassis, so they're perfect comparisons)
UPDATE: This bug was fixed in the March 3, 2026 update, the Hitcher chassis is now working great!
https://warrobotsfrontiers.com/en/news/315-patch-notes-march-3-2026