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The R1 Concepts Geo-Carbon drilled-and-slotted rotor is a replacement brake rotor that uses a Geo-Carbon finish with drilled and slotted machining to aid heat dissipation and consistent pad engagement. It’s specified for 2021–2025 Ford E-350 Super Duty rear-left applications, supplied to match the original wheel position for that heavy-duty model and side.
R1 21-25 Ford E-350 Super Duty Rear Left Drilled & Slotted Geo-Carbon Rotor
