<p>The use of ecologically friendly biomass conversion-based products as well as sustainable and renewable-based products has recently become increasingly important in the development of brake pad materials. Using rice husk ash, a biomass-based material, at 0%, 6%, 12%, and 18% has resulted in four different brake pad compositions. The study also examined the effects of brake pads on brake discs during braking and studies conducted by researchers using this material in the field of brake pads. To quantify this effect, we determined the change in surface roughness of the discs before and after the brake tests. We used a brake testing machine during the tests. The results allowed us to determine whether the produced samples met industrial standards. Based on the data, brake pads produced with rice husk ash met the expected quality values. Specimens containing 12% and 18% rice ash, in particular, produced appropriate roughness on the brake disc. In conclusion, the successful use of biomass conversion-based rice husk ash in brake pad production has been supported academically and industrially.</p> Graphical Abstract <p></p>