The nitro series rear brake disc is part of the latest collection from moto master. Features: attractive design, race-proven quality and competitive pricing make nitro the perfect oem replacement disc for most of your riders like moto-master's flame discs, all nitros are made of special hardened, low-carbon stainless steel for optimal durability and maximum stopping power design provides maximum heat dispersion while the carefully positioned cooling slots ensure optimal brake pad cleaning action in all conditions designed and engineered by moto-master to meet the demands of modern motocross and enduro racing specifications: bolt hole circle: 125.0 Mm bolt pattern: 6 hole braking surface: solid inside diameter: 110.0 Mm material: stainless steel model: nitro outside diameter: 220 mm product name: brake disc shape: contour thickness: 4.0 Mm type: one piece fixed units: each to fit: gas gas ec 250 f 2021 all models gas gas ec 250 f 2022 all models gas gas ec 250 f 2023 all models gas gas ec 250 f 2024 all models gas gas ec 250 2021 all models gas gas ec 250 2022 all models gas gas ec 250 2023 all models gas gas ec 250 2024 all models gas gas ec 300 2021 all models gas gas ec 300 2022 all models gas gas ec 300 2023 all models gas gas ec 300 2024 all models gas gas ec 350 f 2021 all models gas gas ec 350 f 2022 all models gas gas ec 350 f 2023 all models gas gas ec 350 f 2024 all models gas gas ec 450 f 2024 all models gas gas ec 500 f 2024 all models gas gas es 350 2024 all m...