Is Hero Xtreme the best bike to buy, what is the meaning of max-payload?
Hero Xtreme is a good 150cc segment bike but it cannot be said the best bike as choice is a subjective thing and it varies person to person by their preferences like design, power, fuel-efficiency, speed, comfort, dimensions, price etc. There are many other good 150cc bikes available like: Pulsar 150, Discover 150, Honda CBR 150R, Hornet 160R, Unicorn 160, Suzuki Gixxer, Gixxer SF, Yamaha Fazer, FZ, FZS, TVS Apache RTR 160 etc. you can check the features and specifications of these bikes on website and choose any as per your need & preference.
For a bike the meaning of payload is its weight carrying capacity which includes weight of the rider, pillion and their stuff.