YB100 is very smooth bike and it has a pleasure ride but it can not beat CG125, for that you need at least GTO110. GTO110 and RX115 are only two under 125cc bikes which can kill CG125. GTO100 is also slower than CG125.
Currently GS150 is the fastest bike in Pakistan. I really look forward that the above red Yamaha give tough time to GS150 with better looks, smooth drive and good fuel average at an economical price.