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Chainring: (one of the) front gear(s), attached to a crank; Chainset: see Crankset; Chainstay: a pair of tubes on a bicycle frame that runs from the bottom bracket to the rear fork ends; Chain tensioner: a device to maintain proper chain tension; Chaintug: a device to aid in setting the proper chain tension
For simplicity, 'gear inches' is normally rounded to the nearest whole number. For example, suppose the drive wheel is actually 26 inches in diameter. If the front chainring and rear sprocket have equal numbers of teeth, one turn of the pedals produces exactly one turn of the drive wheel, just as if the pedals were directly driving the drive wheel.
Replacement chainrings must be chosen with a bolt-hole count and spacing that matches the spider. Chainrings designed for use with multi-chainring crank arms may have ramps or pins to aid in shifting. The middle chainring, in the case of a triple crankset, usually has the most shaping to aid in shifting up and down.
For any combination of front chainring, rear cog, wheel size and crank length, his method results in a number that Brown terms the "gain ratio". [27] Also, Brown expressed opinions on chain cleaning, lubrication and wear, [ 28 ] a source of controversy in the field of bicycle maintenance.
Cage length, when combined with the pulley size, determines the capacity of a derailleur to take up chain slack. Cage length determines the total capacity of the derailleur, that is the size difference between the largest and smallest chainrings, and the size difference between the largest and smallest sprockets on the cogset added together. A ...
The number of migrants caught illegally crossing the U.S.-Mexico border soared to record highs after President Joe Biden took office in 2021, fueling criticism by Abbott an Texas launches ...
Front/rear gear measurement uses two numbers (e.g. 53/19) where the first is the number of teeth in the front chainring and the second is the number of teeth in the rear sprocket. Without doing some arithmetic, it is not immediately obvious that 53/19 and 39/14 represent effectively the same gear ratio.
DJ Lagway and Florida put together a strong finish to a difficult season. Lagway shook off a mistake-filled first half to throw for 305 yards and a touchdown in Florida's sloppy 33-8 victory over ...