Hummingbird Folding Bike
Folding bikes are small but surprisingly heavy. But not the Hummingbird Folding Bike, which weighs just 6.5 kilograms (14.3 pounds), the lightest ever made and topping the runner up by a full 3 kilos.
A carbon fibre frame makes this possible, as well as the use of a folding system that ditches the chain tensioner for both safety and lighter weight. Get it with either 16-inch or 20-inch wheels, front and rear brakes, and either single-speed or five-speed versions, the latter with an Internal Geared Hub.
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