From GameWatcher: “Trials Rising is the next game in Ubisoft’s popular bike-riding series, and as it turns out, it’s going to feature cosmetic loot boxes. Fans have not taken the news well, with many of them bringing hell and brimstone to the game’s Steam Discussions thread.”
Source: N4G PC Ubisoft says that "if players didnt buy loot boxes/crates, they would not be added into games"