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Bicycle drivetrain systems are used to transmit power on bicycles, tricycles, quadracycles, unicycles, or other human-powered vehicles from the riders to the drive wheels. Most also include some type of a mechanism to convert speed and torque via gear ratios .
Bicycle storage refers to a method of storing bicycles indoors or outdoors to reduce space usage and protect bicycles. There are various ways to store bicycles, including using bicycle racks, hooks, vertical bike stands, bicycle storage cabinets, etc. Bicycle racks are one of the most commonly used bicycle storage devices.
SRAM now incorporates the former bicycle divisions of Fichtel & Sachs, Sachs-Huret, and acquired component makers RockShox, Avid, Truvativ, Zipp, and QUARQ. [7] In 1995, SRAM introduced their first mountain bike rear derailleur, dubbed “ESP”, that featured a 1:1 cable actuation ratio that was more tolerant of cable contamination.
This page lists notable bicycle brands and manufacturing companies past and present. For bicycle parts, see List of bicycle part manufacturing companies.. Many bicycle brands do not manufacture their own product, but rather import and re-brand bikes manufactured by others (e.g., Nishiki), sometimes designing the bike, specifying the equipment, and providing quality control.
A modern road bicycle drivetrain with front and rear derailleurs. Various derailleur systems were designed and built in the late 19th century. One example is the Protean two-speed derailleur available on the Whippet safety bicycle. [4]
A Park Tool bicycle work stand. The founders of Park Tool along with James E. Johnson developed a clamping device on their original bike repair stand, for which they received a United States Patent in 1976. [3] The company has applied for and has been granted many patents since then, including a pizza cutter shaped like a penny-farthing.
the front and rear shift pattern on a bike with multiple chainrings can be programmed to make best use of the gear progression, avoid duplicate ratios and relieve the rider of the need to decide what combination of front and rear sprockets to employ; the smoothness of electronics can reduce the shock on drivetrain components [5]
Inter 8 - The Inter 8 has interval percentages between the gears of 22, 16, 14, 18, 22, 16, 14, and a total range of 307%, comparable to a road bike derailleur gear systems, but as the other Nexus products, it is designed and intended for urban commuter use. The hub comes in a variety of versions, weighing between 1550 and 2040 grams stripped.
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