Q. I'm 6feet height can i increase seat height according to my height

Royal Enfield Meteor 350 features a low 765mm seat height, however, to fulfill its cruiser ambitions the Meteor also has a sizable presence. The wide bars and the feet-forward seating position will accommodate even six-footers easily. So, we'd suggest you to take ride for a better understanding of comfort and performance. Follow the link and select your desired city for dealership details.

I am also 6 ft and i have installed Touring seats in my bike provided by Royal Enfield and i didn't had the need to increase my seat hieght a bit as it is so comfortable with the installed seat hieght. But if you want to increase the seat hieght it can but not by much.

Definitely. But not preferable. Usually for riders abover 5'10, the knee gets in touch with the engine which creates uneasiness while riding because of the heat.