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The 'diamond' frame's central, horizontal top bar forces the rider to swing a leg over the bicycle's seat. A Triumph step-through, ladies', or open frame Dursley Pedersen bicycle circa 1910 A penny-farthing photographed in the Škoda Auto Museum in the Czech Republic A Brompton folding bicycle Bicycle in Victorian Plymouth, England, with a predecessor of the Starley diamond-frame A cantilever ...
For most of the bicycle's history, steel has been the primary material for bicycle frames, with lugged construction the primary assembling method. Steel continues in use by builders of high-quality steel frames, though its dominance as a frame material has waned since the mid-1990s displaced largely by aluminum and carbon fiber; lugging has ...
Costs vary from city to city. In London, initial hire access costs £2 per day. ... By fitting bicycle racks on the front of buses, transit agencies can significantly ...
A bike shop or bicycle shop is a business specializing in bicycle sale, maintenance and parts. Bike shops may be small businesses , chain , mail-order or online vendors. Local bike shops (sometimes abbreviated LBS [ 3 ] ) are a key component of the bicycle industry and, in recognition of the value that local bike shops provide, some ...
A bicycle, also called a pedal cycle, bike, push-bike or cycle, is a human-powered or motor-assisted, pedal-driven, single-track vehicle, with two wheels attached to a frame, one behind the other. A bicycle rider is called a cyclist, or bicyclist. Bicycles were introduced in the 19th century in Europe. By the early 21st century there were more ...
A few small specialty manufacturers make bicycle cranks in a number of sizes smaller than 165 mm (6.5 in) and longer than 180 mm (7.1 in). Some manufacturers also make bicycle cranks that can be adjusted to different lengths.
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3 ⁄ 32 in (2.4 mm) chains are generally used on bikes with derailleurs such as racing, touring, and mountain bikes. [17] Fixed sprockets and freewheels are also available in 3 ⁄ 32 in (2.4 mm) widths, so fixed-gear and single-speed bikes can be set up to use the narrower and lighter 3 ⁄ 32 in (2.4 mm) chains.)