Introducing the Gizmag Store

Pedaling

The Autobike Evolution at Interbike 2013

One of the things that keeps some people from cycling more often is the gears – although they need the gears to manage hills and headwinds, they're never sure which one they should be in. If that sounds like you, then you might like the Autobike. It shifts gears automatically based on the rider's cadence, and manages to do so without a battery.  Read More

What's wrong with this picture? Well, the cyclist is actually moving ahead by pedaling in ...

Although cycling is a great form of exercise, it does involve simply doing one thing over and over – rotating the legs forward. Bicycles like the Varibike have attempted to turn it into more of an overall workout, by getting the rider’s arms in on the action. biXe Italia, however, is taking another approach. Its namesake device reportedly allows riders to work different muscle groups, by pedaling forwards or backwards in order to move the bike forward.  Read More

The Varibike in action

Earlier this year, we heard about a proposed arm- and leg-powered bicycle known as the 4StrikeBike. At the time, we knew that if it were to reach production, it would be facing some competition from the existing Raxibo Hand-Tret-Velo. Now, it turns out that another arm-and-legger has also recently hit the market – it’s time to meet the Varibike.  Read More

The 4StrikeBike concept would see riders pedaling with both their legs and arms, for a mor...

Although cycling is a great form of cardiovascular and lower-body exercise, it doesn’t do a whole lot for the upper body. Over the years, various arm-and-leg-powered bikes have been developed, such as the Raxibo. Now, however, retired surgeon Lex van Stekelenburg is hoping to get his own such vehicle into production, in the form of the 4StrikeBike.  Read More

An eco-minded hotel in the UK has installed a bicycle-powered television in one of its roo...

If you're on a cycling holiday where you spend all day in the saddle, there's nothing like getting back to your accommodation and flopping down in front of the TV for a well deserved rest. But for guests at one UK bed and breakfast, it really is nothing like that ... because Cottage Lodge in Brockenhurst has installed a bicycle-powered television in one of its rooms.  Read More

The NuVinci Harmony continuously variable planetary e-bike transmission automatically main...

Fallbrook Technologies released the NuVinci Continuously Variable (CVP) N170 transmission for bicycles in 2007. The rear hub-based system does away with distinct, defined gears, it’s sealed against dirt and other contaminants (unlike a derailleur), and it allows riders to change drive transmission ratios even when standing still. Last year, the company unveiled the NuVinci N360, which is smaller and lighter than the N170, yet has a wider range of ratios. This Tuesday, Fallbrook announced yet another incarnation of the technology – the NuVinci Harmony, which is an auto-shifting version of the N360.  Read More

The EGO-Kit is an electric motor that can be added to downhill mountain bikes for powering...

While electric commuting bikes are currently experiencing a surge in popularity, electric mountain bikes such as the Conway E-Rider and the KTM eGnition are also showing up on tradeshow floors with increasing frequency. Most of these are designed as cross-country and/or trail bikes, with the idea that the motor can extend their range above the reaches of pure human power – of course, they might also appeal to couch potatoes who want all the fun of mountain biking, with a minimum of the exercise. The EGO-Kit, however, is an electric motor that can be added onto an existing downhill mountain bike, with the specific purpose of replacing a chair lift for getting bike and rider to the top of the mountain.  Read More

When force is applied to the pedal, the stainless steel, triangular-shaped swinging mechan...

At first glance, a proposal to replace a bicycle's familiar chain and cog drive with one that uses string may sound like lunacy, but that's exactly what's been done to produce the Stringbike. The system features freewheel mechanisms on either side of the rear wheel connected by polyethylene rope to a precisely positioned, symmetrical swinging arm that drives the bicycle forward. When the unit on the right is driving the bike forward, the other is being returned to its starting position and vice-versa which is said to result in greater efficiency and makes for a more comfortable, easier ride.  Read More

The NuVinci N360 Continuously Variable Planetary (CVP)  transmission for bicycles

Three years ago, Fallbrook Technologies introduced its NuVinci Continuously Variable Planetary (CVP) N170 transmission for bicycles. The device created something of a stir in the cycling community, as it replaces traditional derailleurs with a rear hub containing metal spheres, plus it also replaces distinct gears with a continuously variable system of transmitting mechanical power – kind of like comparing a three-setting desk lamp to one with a dimmer switch. Riders can change gears even when not pedaling, they don’t need to worry about improper chainring/cog combinations, and the fiddly bits aren’t out in the open where the dirt can get at them. The N170 is heavier than a conventional derailleur system, which is why you don’t see it much on bikes other than cruisers. That could change, however, with this Wednesday’s announcement of the NuVinci N360 transmission. Fallbrook claims it has all the good points of the N170, but is 30 percent lighter and 17 percent smaller.  Read More

Greg Kolodziejzyk's pedal-powered boat, WiTHiN

Back in January 2007, we brought you the story of Greg Kolodziejzyk, a Canadian adventurer who was planning to break the human-powered transatlantic record. What made Greg’s record attempt so interesting was that he was going to do it in a fully-enclosed pedal-powered sea kayak. The boat was still under construction at the time. Flash forward to January 2010, and Greg has had to call off the transatlantic attempt due to logistic problems. His new boat, however, is a marvel of marine engineering, and he’s planning on pedaling it from Canada to Hawaii.  Read More

Looking for something? Search our 26,562 articles