Pedaling

One of the things that keeps some people from cycling more often is the hassle of changing gears. 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.

Although cycling is a great form of exercise, it does involve simply doing one thing over and over – rotating the legs forward. The biXe Gear, however, reportedly allows riders to work different muscle groups, by pedaling forwards or backwards in order to move the bike forward.

The Varibike is designed to give cyclists a more complete work-out, and to produce more power, by allowing them to pedal with both their legs and their arms.

The 4StrikeBike concept would see riders pedaling with both their legs and arms, for a more complete workout and greater power.

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

The NuVinci Harmony continuously variable planetary e-bike transmission automatically maintains the rider's pedaling cadence.

The EGO-Kit is an electric motor that can be added to downhill mountain bikes for powering them up to the tops of mountains.

The Stringbike features a symmetric alternating drive system where rope is wrapped around the rear wheel drum at the back and a kidney-shaped swingarm at the front.

NuVinci has just released its N360 Continuously Variable Planetary (CVP) transmission for bicycles, which is said to smaller and lighter than the current model.

Greg Kolodziejzyk is attempting to pedal a boat from Canada to Hawaii.

The Pedal-A-Watt uses person power to harness energy that can be used to power common household appliances

Dosun Solar Technology has added a pedal-powered LED safety pedal to its range of lighting solutions