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Depends on what you want them for. Gears will make riding more efficient, as it allows you to trade strength for speed when there's a tailwind or downhill slope, and to trade speed for strength when there's a headwind, or when you're going uphill. OTOH for every part that you add to the bike there's one more part that can break. If you know that you'll only be riding in one set of conditions then you can set the bike up to fit that use w/o the need for any gears.

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16y ago

What else can I help you with?