Menabo's open rail roof bars are not specifically listed as compatible with the 2021 Peugeot 5008. For this model, Menabo offers roof bars suitable for Peugeot 5008 II manufactured between March 2017 and July 2024, but only for roofs with integrated longitudinal bars, which is different to open rails. It is therefore likely that these bars are not suitable if your Peugeot 5008 has open rails.