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Bicycle and motorcycle geometry is the collection of key measurements (lengths and angles) that define a particular bike configuration. Primary among these are wheelbase , steering axis angle, fork offset, and trail.
Broadly speaking, the road bicycle geometry is categorized as either a traditional geometry with a horizontal top tube, or a compact geometry with a sloping top tube. Traditional geometry road frames are often associated with more comfort and greater stability, and tend to have a longer wheelbase which contributes to these two aspects.
Bike maneuverability and handling is difficult to quantify for several reasons. The geometry of a bike, especially the steering axis angle makes kinematic analysis complicated. [2] Under many conditions, bikes are inherently unstable and must always be under rider control.
It has a more slack geometry and fatter tires than a road bike. It is generally used to tackle more rough terrain than cyclo-cross bicycles. Gravel bicycle frames also use characteristics of both cyclocross and road bikes for better comfort on long rides and the wheel clearance to accommodate rides done in torrential conditions. [1]
Bicycle grips made of leather. Anatomic shape distributes weight over palm area to prevent cyclist's palsy (ulnar syndrome). [62] The handlebars connect to the stem that connects to the fork that connects to the front wheel, and the whole assembly connects to the bike and rotates about the steering axis via the headset bearings. Three styles of ...
LeMond Racing Cycles is a bicycle company founded by Greg LeMond, the only American winner of the Tour de France.. LeMond initially offered bicycle frames with a geometry based on the racing bikes he used in competition, with a longer top tube and wheelbase in an otherwise traditional lightweight steel frame.
This mountain bicycle features oversized tires, a full-suspension frame, two disc brakes and handlebars oriented perpendicular to the bike's axis. A time trial racing bicycle A Half Wheeler trailer bike at the Golden Gate Bridge Working bicycle in Amsterdam, Netherlands A BMX bike, an example of a bicycle designed for sport A racing upright bicycle A recumbent bicycle Diagram of a bicycle A ...
Road bikes tend to have a more upright shape and a shorter wheelbase, which make the bike more mobile but harder to ride slowly. The design, coupled with low or dropped handlebars, requires the rider to bend forward more, making use of stronger muscles (particularly the gluteus maximus) and reducing air resistance at high speed.