New answers tagged storage
Unlike @Batman and @Daniel, I think it does matter. The bike should be stored with the gears set to the highest gear (the chain on the smallest cog), so that the spring in the derailleur is under the least pressure, and the cable is also under the last tension. So the cable will stretch less and the gears will stay in adjustment longer.
It doesn't matter for any perspective aside from convenience -- usually the most convenient gear to store it in is the gear you're going to use first when you start riding again.
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