Royal Enfield Thunderbird 350 is an updated version of CB Unicorn 150 with major changes in all most aspects. So what are those major tweaks at an expense of extra 6000 – 7000 rupees ?. Unicorn 150 is losing grip in the market as it is ageing and rivals are now outperforming. So does Unicorn 160 perform the role of successor quite well? Time to inspect.