Question: which bike should i buy bs4 or bs6?
Answer: According to the upcoming emission norms, BS6-compliant two-wheelers should be 25 per cent cleaner than their BS4 counterparts. While BS4 vehicles are currently allowed a NOx (Nitrous Oxide) pollutant level of 80mg/km, BS6-compliant vehicles will have NOx levels reduced to 60 mg/km.