Yes, an e-bike small and light enough to fit in a backpack. That's what Smacircle says they've created with their model S1. And people are really interested. On Indiegogo, their project raised nearly $560,000.00. It's built with carbon fiber and although it weighs only about 16 pounds it's strong enough to carry a weight of up to 220lbs/ 100kg. It folds to fit into a standard backpack with the tallest dimension of the S1 being 19 inches. Or you can carry it easily by holding onto the saddle. The brushless DC Motor is said to reach a top speed of 15 mph (the legal limit in most places) and it has a range of about 20 miles depending on road surface and speed. The S1 e-bike automatically connects with your mobile phone when the rider is within range of the S1. When the security lock is activated, the accelerator becomes deactivated. With the security lock, no one else can unlock/ride the ebike except you. Custom solid damping tires so there's no need to worry about punctures, or inflating. Tires are only 8” in diameter so I assume smoother roads are the best. Front light and sidelights ensure you are visible at night to traffic and pedestrians. The company says it's 100% street legal. Folded, it's approximately 7.5" X 11 3/4" X 19.3". Open Height: 33.85 inches, Width: 37.40 inches -which I guess is the length of the S1, and Depth: 18.50 inches, probably the width of handlebars. Presale price is $999.00 till the end of May 2019. Then $1399.00. According to their website, delivery is in June.
Giz Wiz Video: https://youtu.be/knSJB1kdcE8
Company website: www.smacircle.com