hi im tony i live in norfolk which is quite flat. im doing some research on a new business venture, and need some help. im starting a bike hire and tour business and need advice on the type of bikes to get. i need to keep the number of bikes to a minimium due to cost. but need to cater for every one and all riding conditions and terain. the bikes will mostly do city and road riding although we do have some off road routes. im also not sure about frame size i think it will be mostly adults but they need to cater for large and small. the other factor is ladies and gents bikes or unisex which the later can look a bit gay no offence. any help will be greatfully recived.