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The Flying Pigeon PA-02, a single-speed utility bicycle, is the most produced bicycle model in history. A single-speed bicycle is a type of bicycle with a single gear ratio . These bicycles are without derailleur gears , hub gearing or other methods for varying the gear ratio of the bicycle.
KHS Bicycles is a bicycle manufacturer founded in 1974 with main operations in the United States and Taiwan.Its bicycles are distributed in over 30 countries. [1] Although KHS' main focus has been in mountain bikes, it has offerings in road bikes, folding bikes, tandem bikes, cruiser bikes (under the Manhattan brand name), single speed bikes and BMX bikes (under the FreeAgent brand name).
The largest multi-bike had 40 riders. [citation needed] In most of these types the riders ride one behind the other (referred to as tandem seating). Exceptions are "The Companion", or "Sociable," a side-by-side two-person bike (that converted to a single-rider) built by the Punnett Cycle Mfg. Co. in Rochester, N.Y. in the 1890s.
The Swift Folder design employs a vertical folding method, using the seat-post and a split seat-tube as the locking mechanism. To fold, the seat-post is released from the two parts of the seat-tube by their respective quick release clamps, then pulled up into the upper part of the seat-tube to unlock the frame. A pivot in the main frame tube then allows the rear triangl
From a mechanical viewpoint, up to 99% of the mechanical energy delivered by the rider into the pedals is transmitted to the wheels (clean, lubricated new chain at 400 W), although the use of gearing mechanisms reduces this by 1–7% (clean, well-lubricated derailleurs and a straight chainline), 4–12% (chain with 3-speed hubs), or 10–20% (shaft drive with 3-speed hubs).
Quality Bicycle Products (QBP) is a large distributor of bicycle parts and accessories in the bicycle industry, based in the United States, [2] with revenues of $150 million in 2008. [ 3 ] [ 4 ] In addition to wholesaling bicycles and components from other manufacturers, QBP owns and manufactures several brands of its own.