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The formerly popular 27 inch (630 mm) wheel size is now rare. Children's bicycles are commonly sized primarily based on wheel diameter rather than seat tube length (along the rider's inseam) dimension. Thus, a wide range of small bike wheels are still found, ranging from 239 mm (9.4 in) diameter to 400 mm (16 in).
The Westwood rim style of cycle rim used on bicycles was one of the original steel rim designs, developed during or before 1891 by Frederick Westwood of Birmingham. [1] Bowden brakes and cables designed for use with this rim were introduced in 1896. [2] Westwood rims have also been found ideal for use with drum brakes.
Bucking bike (with one or more eccentric wheels) Tall bike (often called an upside down bike, constructed so that the pedals, seat and handlebars are all higher than normal)—other types of tall bikes are made by welding two or more bicycle frames on top of each other, and running additional chains from the pedals to the rear wheel.
It is designed to make tire sizing consistent and clear. It replaces overlapping informal systems that ambiguously distinguished between sizes. For example, at least 6 different "26 inch" sizes exist (just by American notation), and "27 inch" wheels have a larger diameter than American "28 inch" (French "700C") wheels.
The first was the chain drive, originally used on tricycles, allowing a gear ratio to be chosen independent of the wheel size. The second was the pneumatic bicycle tire, allowing smaller wheels to provide a smooth ride. An 1880 penny-farthing (left), and the first modern bicycle, J. K. Starley's 1885 Rover safety bicycle (right)
This category is for articles about bicycle wheels or parts thereof (e.g. spokes, tyres). Pages in category "Bicycle wheels" The following 11 pages are in this category, out of 11 total.
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29″ and 26″ mountain bike wheels. 29er rims have an interior diameter of 622 millimetres (24.5 in) [1] and the average 29″ mountain bike tire is (in ISO notation) 59-622 – corresponding to an outside diameter of about 29.15 inches (740 mm). The typical 26″ MTB tire has a rim diameter of 559 millimetres (22.0 in) and an outside tire ...
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