Halbrad - kleiner und einfacher als ein Klapprad
2-Gang-Rücktrittschaltung. Lenker hinter dem Gesäß.
Video, das zeigt wie Passanten sofort damit losfahren können:
http://www.aparchive.com/metadata/Any/8172525db5c4c590b860ed4ff7a22b3bIt has a large rear wheel and small front wheel, the triangular structure means it can be picked up and moved around like a folding bike - but without the folding part."What we have here is a 'Halbrad' (half-bike). It is a very short bike that is very practical in the city, to get from A to B. We have a small wheel at the front and a 20-inch wheel at the back and two gears," says Kruschardt.This is the second prototype - the first was made out of wood.The bike is not yet on the market, but Kruschardt hopes to start construction on the first 20 bikes later this year."It is very practical because it is always very compact, without any need to fold it together," he says."You can easily pick it up and carry it in to the subway, without having to buy an extra ticket for the bike. Also, it doesn't take much space in the apartment, and all without folding it together."The handle bar has been placed behind the cyclist, something that takes a bit of getting used to for new riders.Today, Kruschardt is showing his invention to tourists at Berlin's iconic Brandenburg Gate.Most learn how to ride it within a matter of minutes."That was really good. It was perfect to ride. And it was fun," says Paulius Sirgedas, a tourist from Lithuania.Ben Cook, from London, UK, is able to glide off on his second attempt."It's a little bit wobbly. Because you are used to holding on to handle bars. But once you get going it was kind of easy and it felt kind of natural, yeah," he says.David Madrid, visiting from Argentina, was also eventually able to navigate round the busy crowds."It is fast, practical and fun. The only thing I don't like is that the handlebar is at the back," he says.The 'Halbrad' has two gears, changed by pushing the pedals backwards.It is 99 centimetres high and 79 centimetres long and weighs a total of 9 kilos.
Halbrad half-bike is a rolling rear triangle for the streetsBy C.C. Weiss, April 11, 2016Two wheels, pedals, a saddle and half a frameWhy spend time folding your bike in half when you can just jump on half a bike and ride? A unique last mile solution, the German-designed Halbrad (that's "Halfbike" in English) packs the two wheels, pedals and handlebars of a bicycle on a reengineered rear triangle. This half-bike actually looks more like a third of a bike, and it pedals the streets and carries and stores easily thanks to those compact dimensions.We've become fairly numb to odd-looking creations of the bicycle (and tricycle, quadricycle, unicycle) variety, but even we had to do a double-take when we first saw the Halbrad. It looks like designer Felix Kruschardt literally sawed off the rear triangle of a regular bike, welded a second seat tube with handlebars behind the first seat tube, and secured a small wheel at the bottom. It's a more literal interpretation of the half-bike than others, like the Halfbike and Halfbike II.Clearly aimed at the ever-growing personal urban mobility market, the Halbrad is a simpler commuter bicycle that looks perfect for the smallest city apartments and tiny houses. To ride the super-compact bike, you sit on the saddle, grab hold of the handlebars that run below the saddle, and pedal away – it's not unlike the tiny Burke 8. It looks more similar to riding a unicycle than a bike, but the Halbrad website says that it only takes minutes to learn. The bike features a two-speed drivetrain and a coaster brake. It has a 35-in (90-cm) turning radius and can stand by balancing the front wheel and pedal.At 39 in (99 cm) high by 31 in (79 cm) long and just under 20 lb (listed at 9kg), the Halbrad is designed to be easy to pick up and carry – perfect for taking on a train or or inside an office. Its compact size also makes it easier to store than a full-sized bike. It's not quite as light as the lightest folding bikes we've covered, such as the 12-lb (5.5-kg) A-Bike, 14-lb (6.5-kg) Hummingbird or 18.75-lb (8.5-kg) Ultra X, but it's definitely lighter than the average folder. It's also a lot simpler since you just get off, grab it and start walking – in a pretty seamless motion if you get as good as Kruschardt himself.The Halbrad is designed for light off-road, as well as street riding