The recommended time gap for an oil change can vary depending on factors such as the specific model of your bike, the type of oil used, and the manufacturer's guidelines. However, in general, for motorcycles like the Suzuki Gixxer SF, it is common to change the oil every 3,000 to 5,000 kilometers or every six months, whichever comes first.
Considering that your bike has traveled less than 1,000 kilometers in 7 months and you recently changed the oil at 500 kilometers, it is unlikely that you need to change the oil again at this point. Since you've already used a high-quality oil like Motul 7100, which is known for its performance and durability, it should be able to maintain its properties for an extended period.
They will have the most accurate information and can provide guidance based on your bike's requirements and usage conditions.