"The Ortlieb Bike Shopper is a single"



It's irrelevant whether they sell singles in some other case. I'm sure if you call them up and ask for half a bike shopper and start spewing on them for not stocking them, you would get the same reaction. Why doesn't every store sell complete sets of parts and have a repair work station. Why don't they offer more colours, mix and match colours, or sell pizza. They spend some time coming up with the stuff they can profitably sell, anything they do outside of that is costing them money, even if it could be a money maker in some identical parallel universe. They could decide to do you a solid, but I'm glad they don't if all it would do for me is raise my prices.