125cc Commuter cannot do 120kmh, even GS150 donot do 120kmh and do you really need to tour on 120kmh ? pakistani roads do not allow to cruise beyond even at 100kmh biker is at High Risk on High ways.
And specially when on tour with all the laden wieght and bulky boxes on side it would become more worse.
If you are planning "ON ROAD" comfortable "cruising" tours Paiggo is you ride, for every thing else go for CG... because CG will not let you down in worst conditions...