All front wheel kits come with those washers, they do not take the place of torque arms since they add no strength but do engage with lawyer lips nicely to help keep the axle from spinning. Again, might not be entirely necessary with a 250W motor but highly recommended with an alloy fork, especially as you had to file down the slots on yours to fit the 10mm squared-off axle. Grin Tech TorqArm V2 best option if your fork has fender eyelets because the installation is neater, if not you’re still welcome to my V3 (which I ordered by mistake and am never going to use myself, it’s just taking up space in my parts bin.)