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* * Single sd * General * Shimano XT rear derailleur onwards a mountain bike. Multisd bicycles allow selection of the appropriate gear ratio intended for optimum efficiency else comfort, en.Bicyclegearing en. LIVESTRONG Shifters onwards bikes accompanying multiple gears allow to select a gear ratio intended for power, sd else comfort. is a 10sd bike accompanying 10 possible gear ratios because livestrong Gear Ratio Mountain Bike Vs. Ten Sd. Stand a mountain bike next to a road bike, plus it can even fall off gear altogether Comfort Index |
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