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Clincher tires can be mounted on straight-side or crochet-type rims. Crochet-type rims are not the same as hooked-bead rims. Such tires are designated with their nominal section width and their nominal rim diameter, separated by a hyphen (-). Both are measured in millimeters. A typical example of a tire marking according to ISO 5775-1 is:
The wheel size is sometimes erroneously called "650B" [8] [9] as a "marketing term" by some manufacturers for their 27.5", but the 650B size has traditionally been a designation for a 26 inch diameter (ISO ~ 40-584 demi-ballon tire) using the same ISO 584 mm rim [10] used by French tandems, Porteurs and touring bicycles.
A plus-size tire has a width of typically 2.5–3.25 inches (64–83 mm). Three bead seat diameters are available: 559 mm for 26+ , 584 mm for 27.5+ ( 650B+ ), and 622 mm for 29+ . They fill the gap between balloon and fat tires.
BMX bicycles are available in these types: [1] Dirt – These bikes feature tires with thicker and wider tread for better grip on potentially loose surfaces. Flatland – flatland style BMX bikes have different frame geometry to traditional park BMX bikes because flatland riding requires precise balance on multiple parts of the bike.
Diamondback was founded as a BMX brand in 1977 by Western States Imports in Newbury Park, California, which sold bikes under the Centurion (bicycle) brand. [7] Became a highly regarded name in BMX. [8] Dynacraft BSC – American Bicycle distributor; DYNO is a BMX bike and bike products company started by Bob Morales in 1982.
The Grifter was released six years before the first Raleigh BMX bike, and discontinued in 1983 after new models such as the XL and Super Grifter with more modern and visually attractive styling were introduced to keep interest in the range. However, BMX was so popular in the UK during the period that the Grifter was eventually discontinued in 1983.