Search results
Results From The WOW.Com Content Network
Bicycle drivetrain systems are used to transmit power on bicycles, tricycles, quadracycles, unicycles, or other human-powered vehicles from the riders to the drive wheels. Most also include some type of a mechanism to convert speed and torque via gear ratios .
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.
A bicycle, also called a pedal cycle, bike, push-bike or cycle, is a human-powered or motor-assisted, pedal-driven, single-track vehicle, with two wheels attached to a frame, one behind the other. A bicycle rider is called a cyclist, or bicyclist. Bicycles were introduced in the 19th century in Europe. By the early 21st century there were more ...
Bicycle performance is measurable performance such as energy efficiency that affect how effective a bicycle is. Bicycles are extraordinarily efficient machines; in terms of the amount of energy a person must expend to travel a given distance, cycling is calculated to be the most efficient self-powered means of transportation .
On a bicycle with more than one gear change mechanism (e.g. front and rear derailleur), these three numbers can be quite different, depending on the relative gearing steps of the various mechanisms. The number of gears for such a derailleur equipped bike is often stated simplistically, particularly in advertising, and this may be misleading.
A modern industrial knitting machine in action industrial circular knitting fabric machines A knitting machine is a device used to create knitted fabrics in a semi or fully automated fashion. There are numerous types of knitting machines, ranging from simple spool or board templates with no moving parts to highly complex mechanisms controlled ...
Ridley Bikes was started in 1997 by Jochim Aerts, a frame builder and painter who had been producing frames for Belgian bicycle companies since 1990. In a few years, Ridley became the market leader in Belgium for racing bikes. [1] They are the main bike sponsors for team Lotto–Soudal. [2]
Training aids are sometimes used to make it easier to become comfortable with riding a unicycle. One method for training is using a spotter to make riding easier. Another method is finding a narrow hallway that can be used to help alleviate left and right balancing while allowing a beginner to focus on forward and backward balance.