Go Off-Road, Stay On Budget.The D604 offers riders more flexibility in their riding. Go Off-Road, Stay On Budget.The D604 offers riders more flexibility in their riding. Venture off-road with the Dunlop D604.Dunlop's new D604 offers riders more flexibility in their riding.Value - Designed to offer a balance of performance and value.Handling - Because bikes are meant to lean over.80% road, 20% off-road use.Well suited