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The three-speed bicycle is a bicycle that uses internal hub gears at the rear wheel hub to provide three gear ratios. Three-speed hubs have been in use since the early 1900s. Though they are heavier than comparable derailleur systems, internal-gear hub systems generally last longer and require less maintenance.
The width of early Shimano 6- and 7-speed cassettes was 36 mm, and early 8-speed 40 mm wide. Shimano then changed again and standardised 8-11 speed cassettes on 41.5 mm and second generation 7-speed to 38 mm. The widening of the sprocket carrier on the cassette hubs to 41.5 mm resulted in a decrease in the distance between the hub flanges.
In the $500,000 Oaklawn Handicap on April 7, 2007 Lawyer Ron was ridden for the first time by Edgar Prado. Although previously a headstrong horse, he settled early and moved to the lead on the outside passing the three-eighths pole and entered the stretch with a clear advantage. He pulled away to win by 4 lengths. Prado never used the whip on him.
Sturmey-Archer S3X. A hub gear, [1] internal-gear hub, [2] internally geared hub [3] or just gear hub [4] is a gear ratio changing system commonly used on bicycles that is implemented with planetary or epicyclic gears. The gears and lubricants are sealed within the shell of the hub gear, in contrast with derailleur gears where the gears and ...
Gear. Two intermeshing spur gears rotating at different velocity due to differing gear ratio. A gear is a rotating circular machine part having cut teeth or, in the case of a cogwheel or gearwheel, inserted teeth (called cogs ), which mesh with another (compatible) toothed part to transmit rotational power.
Litespeed is a U.S. bicycle manufacturer founded in 1986 in Ooltewah, Tennessee by David Lynskey. [1] [2] Litespeed makes titanium and carbon fiber frame road racing bicycles and mountain bikes. Titanium bicycle frames are famed for their ride quality. [3] [4] Litespeed, along with triathlon specific bicycle manufacturer Quintana Roo, [5] is a ...