Q. Which bike is better for 5'2 feet teenager in royal Enfield - Thunderbird 350?

For teenager bikes like fzs , pulsar 150, hornet etc are best because on those bikes you learn a lot royal enfields are for much mature and experienced riders still if you want enfields only the thunderbird is better

Both RE 350 classic and Thunderbird are great for you.The classic is better as the seat height is a bit lower than the TB.Test ride both bikes yourself and you can see it yourself please.

No royal Enfield will be safe for you, unless your legs are really strong.. The bike is pretty heavy, so if your legs don't reach the ground properly, it won't be safe ...