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Two bladed spinner on a wire wheel 1967 AMC simulated wire wheel cover with spinner. The spinner or "knock-off" originated with Rudge-Whitworth center lock wire wheels and hubs, which were first patented in 1908. [1] [2] The spinner was a threaded, winged nut designed to keep the wheel fastened to the hub. They were screwed on and "knocked on ...
Indoor cycling, often called spinning, is a form of exercise with classes focusing on endurance, strength, intervals, high intensity (race days) and recovery, and involves using a special stationary exercise bicycle with a weighted flywheel in a classroom setting. [1]
A bicycle tire is a tire that fits on the wheel of a bicycle or similar vehicle. These tires may also be used on tricycles, wheelchairs , and handcycles , frequently for racing . Bicycle tires provide an important source of suspension , generate the lateral forces necessary for balancing and turning , and generate the longitudinal forces ...
A stationary bicycle (also known as exercise bicycle, exercise bike, spinning bike, spin bike, or exercycle) is a device used as exercise equipment for indoor cycling. It includes a saddle , pedals , and some form of handlebars arranged as on a (stationary) bicycle .
Bottle dynamo mounted on a bicycle. Dismantled bottle dynamo. Left: Housing with internal permanent magnet rotating through the friction wheel. Right: Induction coil. A bottle dynamo or sidewall dynamo is a small electrical generator for bicycles employed to power a bicycle's lights.
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A hub dynamo is a small electrical generator built into the front hub of a bicycle wheel that is usually used to power lights. Often the hub "dynamo" is not actually a dynamo, which creates DC, but a low-power magneto that creates AC. Most modern hub dynamos are regulated to 3 watts at 6 volts, although some will drive up to 6 watts at 12 volts.