The battery meets all expectations, with exactly the right voltage and current. The size corresponds exactly to the box in which it is to be inserted. The contacts are perfectly fine, so the installation was completely in line with the motorcycle and the service technician's requirements. I therefore recommend the battery as a great buy at a very reasonable price.
Without a doubt, I can recommend the voltage regulator purchased from the store. It fits my motorcycle, which is a Yamaha R1. The manufacturer is a company from Poland, qualitatively the product is very good, made solidly, without any saving on material, which we will experience in Chinese replacements. When working in a motorcycle, with a power of nearly 200 horses, there is no problem with overheating or malfunctioning, even when riding hard at high revs. As much as possible I can recommend the product. Best regards.