I need to upgrade/replace the chain and sprockets on my bike and was thinking of purchasing this kit in the 525 pitch

Looking at getting it from motosport.com, approx 245 Aus delivered.
Does anyone have thoughts/opinions on the RK chain. I have never had one before.
Also am I correct in thinking the standard ration is 16t for the front and 44t for the rear? I have been reading abit around but nothithg definitive.
Thanks in advance for your help