freewheel brake roller

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• Bicycle brake — Animation of a single pivot side pull calliper brake for the rear wheel of a steel framed road bike. A bicycle brake is used to slow down or stop a bicycle. There have been various types of brake used throughout history, and several are still in… …   Wikipedia

• Bicycle brake systems — are used to slow down, or brake a bicycle. There have been various types through history, and several are still in use today.HistoryEarly bicycles such as the high wheeled penny farthing bikes were fitted with spoon brakes. As they were fixed… …   Wikipedia

• Chain drive — Roller chain and sprocket Mack AC delivery truck at the Petersen Automotive Museum with chain drive visible Chain drive is a way of transmitting mecha …   Wikipedia

• Shimano — Shimano, Inc. Type Public Industry cycling components, fishing tackle, snowboarding equipment Founded February, 1921 …   Wikipedia

• bicycle — bicyclist, bicycler, n. /buy si keuhl, sik euhl, suy keuhl/, n., v., bicycled, bicycling. n. 1. a vehicle with two wheels in tandem, usually propelled by pedals connected to the rear wheel by a chain, and having handlebars for steering and a… …   Universalium

• Bicycle — For other uses, see Bicycle (disambiguation). A mountain bike, a popular multi use bicycle. A bicycle, also known as a bike, pushbike or cycle, is a human powered, pedal driven, single track vehicle, having two wheels attached to a frame, one… …   Wikipedia

• Crankset — A Shimano Deore right crankset, showing crank arm, spider, three chainrings and chainring guard …   Wikipedia

• Tricycle — For other uses, see Tricycle (disambiguation). A tricycle (often abbreviated to trike) is a three wheeled vehicle. While tricycles are often associated with the small three wheeled vehicles used by pre school age children, they are also used by… …   Wikipedia

• Sprag — A sprag is a one way freewheel clutch used in a number of applications. It resembles a roller bearing with rollers shaped like a figure eight and cocked with a spring. When the unit rotates in one direction, the rollers stand up and bind because… …   Wikipedia

• Motorcycle construction — is the engineering, manufacturing, and assembly of components and systems for a motorcycle which results in the desired performance, cost and aesthetics. Construction of modern motorcycles has standardized on the key components listed… …   Wikipedia

• Sprag clutch — One way bearing combining sprags and bearing rollers in one race A sprag clutch is a one way freewheel clutch. It resembles a roller bearing, but instead of cylindrical rollers, non revolving asymmetric figure of eight shaped sprags are used.… …   Wikipedia