Douna K1

Updated October 6, 2026

Overview

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The Douna K1 (also known as the Douna Series K1 or Douna Impossible) is a pioneering "wearable" folding electric bike designed by Wuxi Kolerwheel Intelligent Technology Co., Ltd. in China Chinadaily Goldsupplier. It gained significant attention for its extreme portability, marketed as a solution to urban "last-mile" commute challenges.

Product Overview & Key Specifications

The Douna K1 is characterized by its unique circular folding frame, allowing it to fold into a compact size comparable to two A4 sheets of paper Chinadaily.

Portability: Weighs only 9.8 kg (21.6 lbs) and can fit inside a standard backpack Pinterest Chinadaily.
Motor & Power: Equipped with a 240W brushless motor and a 48V 2900mAh lithium battery Goldsupplier.
Performance: Reaches a top speed of 20 km/h (12.4 mph) with a range of 10–15 km per 2-hour charge Goldsupplier.
Capacity: Designed for a maximum payload of 75 kg (165 lbs) Flickr.
Smart Features: Integrated with a smartphone app for GPS tracking and vehicle diagnostics Chinadaily.

Market Trends & Insights

1The "Last-Mile" Urban Solution: The Douna K1 represents a trend toward "micro-mobility" where the vehicle is an extension of the user's personal gear rather than a standalone transport mode Pinterest Chinadaily.
2Extreme Lightweighting: Market demand for ultra-lightweight bikes (under 10 kg) is a growing niche, though it often involves trade-offs in load capacity and range. Modern competitors like Dahon are now achieving similar portability with larger wheels and higher weight limits (e.g., 12 kg with 16-inch wheels) Dahon Youtube.
3Folding Mechanism Innovation: The "Impossible" style folding mechanism (circular frame design) was a peak trend in mid-2016-2018. While visually striking, the market has recently shifted toward more traditional "letter-fold" or "tri-fold" frames (like the Dahon K1 Plus or KBO K1) that offer better stability at the cost of being slightly larger Youtube Thirdrailebikes.
4Target Demographic: The product primarily appeals to multi-modal commuters who use subways or buses and require a vehicle they can carry effortlessly indoors Chinadaily.

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Sources & References

47 sources cited · Verified industry data & reports

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Douna K1

Overview

Product Overview & Key Specifications

Market Trends & Insights

Douna K1 Folding Electric Bike Specs

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