The Jive consists of an aluminium frame, a lithium polymer battery that recharges in two hours via any electrical outlet, hydraulic disc brakes and wireless smartphone connectivity through Bluetooth. Yet another entrant in the competitive, build-a-better-mousetrap world of electric-assisted foldable bikes – the Mando Footloose and Gocycle have recently reached market – the Jive can travel up to 20 miles on a full battery charge and is operable in either full-electric, partial-assist or no-assist ride modes.
“Our objective was to make the sleekest and most beautiful bike on the market, so we covered the drivetrain and the two hinges that allow the bike to fold,” says Jam founder Marcin Piatkowski. “And because the drivetrain is encapsulated, it’s 100% maintenance-free.”
Piatkowski also notes that roughly 95% of the energy generated through pedalling is transferred to the rear wheel, a remarkable percentage. Over time, conventional bicycle chains become stretched, rusty and dirty, which reduces a bike’s efficiency to around 50% or 60%, he says.
- Jive bike is a folding ride for chic geeks, BBC.com, July 21, 2017.
3. More than 10,000 street cleaners are scrambling to clean a city that produces 200,000 tons of waste annually; but their job is a Sisyphean task.
In one uncharacteristically dry late morning in July of this year, three women with straw hats, waterproof safety jackets and plastic boots walk at their own speed alongside Roosevelt Avenue at the heart of Addis Abeba.
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