The SRAM GX Eagle 12-speed Chain is a practical spare to keep in your race bag. A broken chain before the start ends your day unless you have a replacement ready. Keeping a spare on hand turns that into a quick fix instead of a missed race. Preparation is what makes this work. Pre-cut the spare chain to the correct length for your bike and keep a quick link with it. That turns a time-consuming repair into a fast swap you can handle during warm-up or a pre-ride. SRAM's GX line also a good balance of performance and cost. No reason to carry a top-tier chain as a spare.
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