Bigger wheels also increase the stress placed on the gearbox and its associated components, so that's something to bear in mind. Depending on how big you go, you might want to consider supporting the wheel on the opposite side too.
Am thinking of using caravan jokey wheels
How big are the featherweights normally are
Most Featherweights use 100mm Diameter wheels
Drill gearboxes as Jamie said will not like running massive wheels, the bigger the wheels, the more strain on your gearbox
How big are featherweight bots
Look in the rules, 13.6kg is the only limit.
Thus if you make it out of 50mm thick lead - it's going to be pretty small. Make it mostly out of air - and it can be bigger than most heavyweights (Look at failboat).
You need to plan and design to the rules, using knowledge gained from build diaries and so on. You can't just ask people to give every random specification for a robot - as it won't go together
They're as big as you want to make it, but bear in mind the bigger it is the less armour you can get in weight. Make it as big as it needs to be to fit the internals in and then build around that.
You can see a fairly typical featherweight in the middle (the one shaped like an inflatable boat).
Aiming for that sort of size should be good.
Bookmarks