For the past 2 years, I have been having a lot of problem from the original chain and sprocket from my ZX 150. As a lot of Kippers says that the original chain is "Ayam Brand". The chain give out a lot of funny noise and it slow down the bike when you change gear or de-celerate. I have been put up with this rubbish for the past 2 years because I "kedekut-lah".
Before CNY, I went to A-Cheng motor shop and somehow or rather he'jampi" me into changing to a new set of sprocket and chain. Total cost RM100.
After the change, my bike was transform from a worm to a dragon .
So, all out there who has not change your chain, do it now and you would not regret.