Orange MTechnics rear disc oil cap for the KTM ADV 250 and KTM ADV 390 (2025), a rear brake reservoir guard for the rear brake oil reservoir and master cylinder area. It keeps mud, stones, dust, water splashes, gravel and off-road debris off the brake components on trails, highways, rain rides and long-distance tours, helping maintain consistent braking. The cap is made from 1.2 mm MS (mild steel) sheet with an orange powder-coated finish for corrosion, heat and scratch resistance; its colour is also listed as Black. It is a bent, textured cover with round perforations and a slotted mark. It is a direct fit on the stock bolt, so it goes on with zero drilling or modification. Fits: ADV 250/390 (2025), Adventure 390 (2025), KTM 390 Adventure