MTechnics rear disc oil cap in black for the ADV 250/390 (2025), listed under the KTM 390 Adventure, a cover that guards the rear brake oil reservoir. It shields the reservoir from mud, stones, splashes and off-road debris, helping keep braking consistent in all conditions. The cap is made from 1.2 mm MS sheet with a black powder-coated finish that suits the rugged ADV styling. It is a bent, textured cover with rows of round perforations and a slotted mark cut into the side. It installs with the stock bolts, making it a quick upgrade. Fits: ADV 250/390 (2025), Adventure 390 (2025), KTM 390 Adventure