Question:What size rack rails are recommended for the pannier hooks? Is there a specific rack that is recommended?
Answer:Hi, the pannier hook of the bike pannier bag can eaisly fit the rack which diameter is under 16mm.
The hooks on the bags bend in and out so they seem to be able to accommodate different size rails. Pretty universal. The only complaint I have is the zippers. Hard to zip and cheap handle.
Question:Is this truly waterproof on its own? The picture shows a large yellow covering. Is that for visibility in the rain, or is it needed for waterproofing?
Answer:The item itself is waterproof. It is able to be rained on and keep out the water. The zippers have a hovering that will allow very little water, if any, to get into the zipper area. The yellow covering is just an added rain deterrent.
The exterior is a heavy plastic with waterproof zippers thus the cover isn’t necessary; however, if you live in an area with high moisture the cover is just added protection.
Question:How many bags are their?
Answer:There are 3 separate basgs. You can use just the top 0ne or all three. Overall its a well made bag.
2 side panniers, top bag & rain fly
Question:Do you think a side pannier, with a width of 11.6 in, be able to stretch enough to fit a 12 in (2 liter) pepsi (water) bottle at its bottom?
Answer:2 things. The dimensions of these bags are slightly misleading. The width of bag tapers down from top to bottom which honestly makes these bags look better. This being said, you can easily fit a 2 liter bottle in the bag but it won't sit on its side on the bottom without serious stretching. Which can be done if there isn't anything else in the bag. Overall though you can fit 2 liters in one bag