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Horizontal rearward-facing track fork end (not a dropout) 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 ...
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 which the axle of the wheel is attached. See also Dropout; Frame: the mechanical core of a bicycle, the frame provides points of attachment for the various components that make up the machine. The term is variously ...
Suspension fork of a mountain bike with disc brake Shape of a bicycle fork. A bicycle fork is the part of a bicycle that holds the front wheel. A fork typically consists of two blades which are joined at the top by a fork crown. The crown is often at the front. Most suspension forks have an arch connecting the two side of the lowers (the part ...
The fork offset is the perpendicular distance from the steering axis to the center of the front wheel. In bicycles, fork offset is also called fork rake. Road racing bicycle forks have an offset of 40–50 mm (1.6–2.0 in). [7]
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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 ...
The fork crown, which joins the steering tube to the fork blades, may have either an external or internal socket design. In most lugged steel frames, the lugs have a simple pointed shape. The lug's curves maximize the strength of the joint, while minimizing the possibility of stress risers , which would otherwise make the frame prone to ...
There is some disagreement as to whether the word axle or spindle should be used in particular contexts. The distinction is based on whether the unit is stationary, as in a hub, or rotates, as in a bottom bracket. [2] American bicycle mechanic and author Sheldon Brown uses axle once and spindle four times in his bottom bracket glossary entry. [3]