Because I ride my mountain bike over pretty rough terrain, I tend to switch seats regularly. It's always the seat rails that wear and break over time, so the main things I look for in a seat are comfort and a low price. If the more expensive seats don't guarantee that the rails will stand up to rough usage, they just aren't worth the extra cost to me. I should point out that "double steel springs on the bottom of the bike seat" in the description is a bit misleading as these are standard steel seat rails.
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