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Portage strap: a strap (usually made of leather) attached to the inside of the bike frame, designed to make carrying the bike over one's shoulder easier; Pulley wheel: see Jockey wheel; Power meter: a device on a bicycle that measures the power output of the rider; Quick release: a skewer with a lever on one end that loosens when the lever is ...
This page was last edited on 20 March 2018, at 22:33 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...
The mechanism was invented in 1927 by Tullio Campagnolo, an Italian bicycle racer. He was frustrated when he attempted to change gears during a race. At the time there was but one cog on each side of the rear hub, so gear changes necessitated stopping, removing the rear wheel, flipping it over horizontally so that the opposite cog is engaged by the chain, and finally reinstalling the wheel.
The measurement is considered positive if the front wheel ground contact point is behind (towards the rear of the bike) the steering axis intersection with the ground. Most bikes have positive trail, though a few, such as the two-mass-skate bicycle and the Python Lowracer, have negative trail. [12]
In August 2018, the company signed a deal with Uber to provide them with electric bikes for the expansion of their Uber Bikes service. [19] In September 2018, a 24-year-old man in Dallas, Texas in United States died in a single vehicle Lime scooter accident. The responding police officer found a Lime electric scooter broken in half about 500 ...
A Jyrobike [1] (formerly known as Gyrobike [2]) is a bicycle with a special front wheel designed to make balancing easier. It was manufactured and sold by a company of the same name. The special front wheel contains a rotating flywheel driven by a rechargeable-battery-powered motor that spins at high RPMs like a gyroscope. This flywheel spins ...
A bike ramp in Poland. Retrofitted ramps (these are also intended for push chairs/prams. V-shaped bicycle stairway beside a short staircase Bicycle stairway within a vehicle ferry. A bicycle stairway is a pedestrian stairway which also has a channel alongside it to facilitate walking a bicycle up or down the stairway. [1]
Impossible wheel, or BC wheel, a wheel with pegs or metal plates connected to the axle for the rider to stand on. [8] These wheels are for coasting and jumping. A purist form of unicycle, without cranks. Monocycle, or monowheel, a large wheel inside which the rider sits (as in a hamster wheel), either motorized or