When it comes to outfitting a gravel bike for long trips, what are the most critical factors to consider when selecting a bikepacking bag system, and how do these factors influence the choice between popular options such as Revelate, Apidura, and Salsas EXP Series. Should riders prioritize overall weight, weather resistance, durability, or ease of mounting and removal, and are there notable trade-offs between these competing priorities? What distinct advantages do each of these manufacturers designs offer in terms of features, materials, and functionality, and are there any less well-known brands or designs that have proven themselves to be worthy alternatives? Are the considerations the same for both solo and tandem riders, and are there any specific bikepacking bag system configurations that have proven particularly effective for carrying gear on ultra-long distance gravel rides of 500 miles or more?
