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Fork: a mechanical assembly that integrates a bicycle's frame to its front wheel and handlebars, allowing steering by virtue of its steerer tube; Fork crown: the point at which the two blades of the fork meet below the steerer tube. Fork end: paired slots on a fork or frame at
A 2008 Specialized Stumpjumper with full suspension A 2008 Specialized S-Works Transition carbon triathlon/time trial bike. In 1995, Specialized launched the Full Force brand. [13] Full Force was a lower-end mountain bike brand sold through sporting goods stores and discount retailers such as Costco. [5] The move angered some Specialized dealers.
Threaded forks necessitate that the threads on the steerer only use the top 25–51 mm (1–2 in), therefore the forks are sold in varying lengths. If there is a need to use a fork that is too long, meaning the fork steerer is not threaded down far enough, a bicycle mechanic can use a die to extend the threads. This is not recommended if the ...
Forks have been made from steel, aluminum, carbon fiber, titanium, magnesium, and various combinations. For example, a fork may have carbon fiber blades with an aluminum crown, steerer tube, or fork ends. In rigid forks the material, shape, weight, and design of the forks can noticeably affect the feel and handling of the bicycle.
A fork end, [1] fork-end, [1] or forkend [2] is a slot in a bicycle frame or bicycle fork where the axle of a bicycle wheel is attached. A dropout is a type of fork end [3] that allows the rear wheel to be removed without first derailing the chain. Track bicycle frames have track fork ends, on which the opening faces rearwards. Because they do ...
These have become common on newer road bikes, as carbon frames no longer have a round seat tube. They are rarely seen on mountain bikes. E-type: This type front derailleurs do not clamp around the frame's seat tube, but instead are attached to the frame by a plate mounted under the drive side bottom bracket cup and a screw threaded into a boss ...
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 ...
Less commonly 31.8 mm (1 + 1 ⁄ 4 in) was used on some mountain bikes and tandems and has now returned on some carbon fiber forks, and 38.1 mm (1 + 1 ⁄ 2 in) is found on high end Downhill bikes. A threadless stem should match the outside diameter of the steerer tube; a reducing shim may be employed to match a 28.6 mm ( 1 + 1 ⁄ 8 in) stem ...