The 2021 Trek Slash has been reviewed and tested by various outlets, with some considering it a top enduro bike. However, the focus of the testing and reviews appears to be somewhat inconsistent, with some outlets evaluating the 2021 model and others discussing different models, such as the 2022 Trek Top Fuel or the 2026 Trek Fuel LX. The results of these tests and reviews are not clearly unified, with some outlets comparing the Trek Slash to other bikes in head-to-head competitions.