Bycicles convert force into torque (pedal to axis), torque into
force (axis to chain using the...
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Physics
Bycicles convert force into torque (pedal to axis), torque intoforce (axis to chain using the front gear), force into a torque(chain to back wheel using back gear), and finally, torque intoforce (wheel on road), and that accelerates the bike. If you makethe front gear smaller, is it easier or harder to pedal (explain interms of forces/torques)? If you make the back gear smaller, is iteasier or harder to pedal?
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Bicycles have multiple gears so that its easier to go up hills and so you can go faster on level ground Read this article and in five minutes youll know how to use your gears First lets get our terms straight so were on the same page You can think of gears as the same thing as speeds a bike with 18 gears is an 18speed bike Bikes generally have 1 3 10 15 18 or 21 speeds 10 and 15speeds are obsolete and you dont see them on new bikes any more Lower numbers are the low gears and higher numbers are the high gears First gear is a low gear Twentyfirst gear is a high gear Thats pretty easy right Shifting means going from one gear to another You shift gears by sliding the shifter on the handlebars On most bikes this shifts the chain onto a different sized ring On threespeed bikes the gears are inside the hub of the wheel so you dont see them Downshifting means going to a lower gear and upshifting means
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