The Single-Speed Hummingbird is the lightest folding bike in the world. Our single gear hub is a ultra light and smooth design with a carefully balanced gearing to ensure effortless riding. The ultimate purist bicycle, simple, fun and easy to use. Weight: 6.9kg - 15 Pounds. GEARING: 60 gear inches, 4.80 meters development. Gearing Combinations: 60 Gear Inches - Easy (Standard), 65 Gear Inches Medium, 72 Gear Inches Fast.
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