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The wider (or jumbo) lids will allow you to put one helmet in the right side case. More than one helmet? Consider getting a top case for the rear. If it's just small items you want to carry and secure, then the city lids probably are the best idea.RRG said:I do not know the part numbers, but BMW offers replacement saddlebag lids, both wider and thinner.
I have a Arai Quantum F helmet, and it goes in the right side case just one way with the jumbo lit. Without the helmet, though, it'll carry a 12 bottle-case of Sierra Nevada. If you put the beer in a plastic bag as well, you can open the case and dump in some ice, too. I suppose if a soggy box isn't an issue, you could forego the plastic bag. Left side is also good for on 6 pack, but you need more ice on that side to keep the beer from getting warm.