Tricycle
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A tricycle, often abbreviated to trike, is a human-powered three-wheeled vehicle.
Modern upright tricycle
Stephan Farffler's hand-controlled three-wheeled wheelchair
19th-century tricycle used in Iran
Starley Coventry Lever Tricycle 1876
Recumbent bicycle
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A recumbent bicycle is a bicycle that places the rider in a laid-back reclining position, and often called a human-powered vehicle or HPV, especially if it has an aerodynamic fairing. Recumbents are a
Tricycle
…regard to speed, rate of turn, slope of surface) and technique (e.g., leaning the body 'into' the turn) to avoid tipping the trike over. Designs such as recumbents or others which place the rider lower relative to the wheel axles have a lower centre of gravity, and/or designs with canted wheels (tilted at the top…
Bacchetta Corsa, a medium-wheelbase high racer
A RANS V2 Formula long-wheelbase recumbent bike fitted with a front fairing
Shop for recumbents in Nijmegen, Netherlands
Woman riding a Cruzbike Sofrider (PBFWD recumbent) near the end of the 500-mile (800 km) "Ride Across North Carolina" 2007