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The 650B size, also known as 27.5″, reappeared in 2007 [6] as a compromise between the 26 inch and 29 inch sizes. The 650B size is called 27.5″. [7] The name "29er" comes from a bicycle called the Two Niner, which was offered by the Fisher bike company in 2001, according to 1998 Mountain Bike Hall of Fame inductee Don Cook. [8]
In 2007, 27.5 inch wheels for mountain bike use was popularized by Kirk Pacenti, [6] [12] and in 2013 at least 10 companies had launched models with 27.5 inch wheels, [3] with some parts manufacturers following suit.
The average 29-inch mountain bike tire is ISO 59-622 - corresponding to an outside diameter of about 29.15 inches (740 mm). 32 inch / ISO 686. 32-inch wheels have been in use on unicycles and have been appropriated for bicycles to create bikes more proportional for taller riders. [39] 36 inch / ISO 787
Specialized Bicycle Components, Inc., colloquially known as and stylized as SPECIALIZED, is an American company that designs, manufactures and markets bicycles, bicycle components and related products under the brand name "Specialized", as well as the premium and professional oriented "S-works".
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.
A mountain bike with 29″ wheels is often referred to as a 29er, and a bike with 27.5-inch wheels is called a 27.5 Mountain bike or as a marketing term ″650B bike". [ 27 ] Wheels come in a variety of widths, ranging from standard rims suitable for use with tires in the 1.90 to 2.10 in (48 to 53 mm ) size, to 2.35 and 3.00 in (60 and 76 mm ...
Mountain biking (abbr. MTB) is a sport of riding bicycles off-road, often over rough terrain, usually using specially designed mountain bikes.Mountain bikes share similarities with other bikes but incorporate features designed to enhance durability and performance in rough terrain, such as air or coil-sprung shocks used as suspension, larger and wider wheels and tires, stronger frame materials ...
A steel framed 2002 Trek 800 Sport mountain bike A Trek 7200 hybrid bicycle (2008) An aluminum framed, 2012 Trek 1.1 Road Bike. In 1997, Trek helped sign former world road race champion (1993) Lance Armstrong to the Trek-sponsored United States Postal Service Pro Cycling Team. Armstrong won his first Tour de France in 1999 aboard a Trek 5500 ...