It is the cheapest Chain size that fits NSR250R, but I think you have to be a very skilled person to know the difference between it and other Manufacturers. For me, the performance is good enough.
I wanted to use Screw joints, so I chose from Gold and Steel. We chose Gold, which seems to be resistant to rust. but the color is too different from the picture and Package. In fact, it is copper-colored. Close to the color of a new 10 yen coin. Disappointing.