trian February 25, 2011 06:13 AM This has to be a joke. No friction brakes? No rear brake at all?I wonder how much stopping power an electromagnetic brake can generate, but surely not as much as a traditional brake. Car manufacturers are reluctant to use brake-by-wire, now here comes someone that proposes the wireless brake!I am sure they would never sell this without a proper friction brake, but even so, it brings unnecessary complication. An answer to a question never asked. edelman February 25, 2011 10:03 AM Trian, at the company website you can see that it has a rear coaster brake. This is totally adequate on flat areas at reasonable speeds. But to depend on an electronic electrodynamic brake is kind of pushing it, to say the least. The suspension is an unnecessary complication (should just use fat tyres). The solid front wheel is also dangerous as it will be...um... redirected by the wind.Making a bike more complicated in order to make it less complicated is really silly. Akemai Olivia February 25, 2011 10:32 AM It ain\'t silly at all. Hard braking can be done by the motors producing reverse force (active braking) to the bike, on top of regenerative braking (passive braking). Wire-brake is prone to fail and not ergonomic.Amateur bicycle racers can typically produce 3 watts/kg for more than an hour (e.g., around 210 watts for a 70 kg rider), with top amateurs producing 5 W/kg as cited from http://en.wikipedia.org/wiki/Bicycle_performance. If Shadow increases the power of the motor to about 750w and more, and use high efficiency dynamo instead of chain links, it would be perfectly clean and \"wireless\", although power is not transfered wirelessly. Using dynamo to run the bike is better since mechanical torque manipulation requires gear sets, while electronically you just need a solid-state controller.The front and rear wheel suspensions are to increase comfort. The wheel shield is to minimise drag, which accounts for major energy loss at high speeds.I would be much happier if Shadow throws away the chains and gears. Then it\'s perfect (umm ahh) MotiveForcer February 25, 2011 11:00 AM This bike would probably be used by citizen riders to commute or run to the store and for short trips. Suspension, while it adds weight opens up the envelope and makes for a safer more forgiving ride if the rider were to encounter a pothole for example. Gearing helps at varying speeds but I suppose they could build the bike to auto shift. I don\'t see the benefit of electric brakes though when mechanical cantilever brakes are inexpensive and strong and easy to maintain. But then again, there would be a wire! A coaster brake translates to no back pedaling but then again this is your commuter vehicle. I agree that the disc wheels, especially in front can catch the wind as does a sail but if the rider is not taking it over a bridge he should be okay for most of the rides... mommus February 25, 2011 11:13 AM If you want to stop it, you gotta think ahead. TogetherinParis February 25, 2011 04:07 PM This is the Copenhagen Wheel on the front instead of on the back. MIT designed it. Thus MIT should be getting a royalty check--or is this just a totally stolen idea? Gary Ares February 25, 2011 05:01 PM I saw this \"thing\" awhile ago with all its glorious claims. I can\'t understand how the smart folks here at Gizmag get sucked in by this abomination. The best I could tell, it was \"developed\" by a Canadian company. Their intentions---- not too sure.Maybe it\'s just a project done by some high school kids??? Calson February 25, 2011 06:22 PM In China there are hundreds of thousands of inexpensive electric scooters in use with speeds of over 20 mph and designed to carry men and women even in business suits and dresses as well as their groceries or a second passenger and do so in all kinds of weather with a protective cape that covers the front of the scooter as well as the driver and passenger. Low quality versions are sold at Best Buy for less than $400. Nothing could be simpler than these car battery powered scooters with a belt drive to an electric motor and a single electric control for speed. An electric bike is going to be used for commuting to work or school or doing light shopping and the Canadian design is based on a fictional need of a person riding around town and wanting a heavy and expensive bike to do so. Repairing the Chinese bikes means replacing a switch or a drive belt or a battery or a motor which the user can easily do themselves which is far different from the Canadian design with nothing accessible for easy troubleshooting or repair. Bad concept and bad design that is well engineered equals a product failure. Timothy Brummer February 26, 2011 12:16 AM Lot\'s of riders are going to die when that front disc gets hit by a wind gust and steers them into danger, say in front of an oncoming car. Why didn\'t they put it on the back? Paul McCollum February 26, 2011 01:12 AM @mommus Fletch Lives quote... made my day. Probably one of the 7 people on earth that will get it.. which should make me sad but made me laugh at myself more. gracias.