Mutus 10 pro dummy plug

Hello.I will return to hand Motus'a 10 pro 2022 and joyor'a s8. I have a hidden cap, which is easily attached with one screw together with the front light (in my case there is a horn). The limitation of this switch cap threatens me, when it is placed, that in my scooter the tube from the closed one is covered with one big rust, which we sanded and protected with paint. I have had the cap installed for half a year and so far it works great. there is a tube from the scooter fork from water, mud and scattered by water in the winter, which causes rust to appear. The cap I use is 3D printed from PLA material, which in my opinion is completely sufficient.