A study of travel habits in seven European cities has found that people who ride their bikes daily have the lowest body mass index (BMI) of any class of transport user – unless the bicycle in question is an electric one, in which case they rank second only to motorists in terms of obesity levels.

Two American cyclists who were among four killed by Islamic State terrorists in Tajikistan had quit their jobs to ride around the world, their families revealed today. Lauren Geoghegan and Jay Austin, both 29, were a year into their dream adventure when they were run over by men in a car and then stabbed to death in the Central Asian country. Mr Austin had earlier written in a blog that the journey had taught him that humans were “generous and wonderful and kind”.

There are few professional sports as closely bound to technology as cycling. A bike isn't just equipment, as skiis or a tennis racket might be—it's a partner in a symbiotic relationship between the machine and athlete. And it's remarkable to see how drastically certain parts of that machine have changed in the last century, while others have stayed largely the same.

Swedish journalist Johan Nylander was invited as the only Western journalist to cover an international bike race from China into North Korea in September. Here he details his travails working with North Korean authorities.

Lawmakers, manufacturers and transportation experts have focused much of their attention on electric cars, with still-disappointing results, but consumers in many parts of the world are embracing electric bikes, which in addition to the usual pedals have small battery-powered motors to speed things along.

Designed in America with new features, more power, and even MORE portability than ever

The baycycle project, currently seeking funding on indiegogo, is an easy-to-use system that connects any bike to a pontoon-like base, marking a new frontier in aquatic sport and travel: water biking.

Disgraced former cyclist Lance Armstrong has told the BBC he will testify with "100% transparency and honesty" at any future inquiry into doping.

You know what kind of sucks about riding a bike? Other than all that pedaling? Bike helmets. Sure, they keep that overrated "brain" from getting splattered, but they take a lot of the open-air-joy out of things, and they're not comfortable. A pair of Swedish women have developed a remarkable solution: the invisible bike helmet.

Here's a new wrinkle to the ongoing Lance Armstrong fall from grace: an Italian cyclist is now claiming that Armstrong paid him $100,000 to throw a critical race in 1993. Roberto Gaggioli told the Italian newspaper Corriere della Serra that prior to the '93 Philadelphia International Championship, a single-day cycling event held since 1985, Armstrong handed him a cake box that had something a little more impressive than a cake inside.

The dangers faced daily by London cyclists hit the headlines last month when six were killed in 13 days, prompting protests and even calls for lorries to be banned from the streets during rush hour. But away from the furore a number of British technology firms have been racing to perfect safety systems that it is hoped can save lives. Cycling deaths hit a five-year high in 2012, with 118 cyclists killed on British roads, and safety standards in the capital are coming under particular scrutiny.

There are a lot of ways cycling is good for the body and the soul.

Uber will begin testing a new service in Manhattan tomorrow, but the new service isn't designed to get you around: instead, it's launching a courier service called Uber Rush, which will let you hire bike and foot messenger to pick up your items and bring them to another location in the city. The service will only operate in Manhattan to start, and couriers won't be able to travel north of 110th Street — no higher than top of Central Park.

Earlier this year a motorcycle unlike any Harley has made in decades began coming off the line,known as the Street.

As part of Boston's new program "Prescribe-a-Bike," doctors can now write prescriptions for low-income patients to get a yearlong membership to the city's shared bike system Hubway for just $5. Doctors at the Boston Medical Center are writing these prescriptions in an attempt to combat the obesity in their community

A thief who stole a state-of-the-art electric bike was caught out after unwittingly calling its owner to buy a battery charger. Ben Jaconelli’s £2,500 Go Cycle was stolen when he left it locked on Kingsland Road in Hackney, east London.

Take an interactive ride across the 8 best cities for bicycling across the USA!

The best defense against bike thieves is to own a bike that no one would want to steal and use a lock that's just good enough to make it inconvenient. But if you must have nice things, a good bike...

MTB ride on Saturday 31st May 2014 from Ongegund, last few km's before end of session. Armed gunman and 2 others stopped myself and took cellphone, car keys, oakleys and bike. Fortunately they did not have a clue what a GOPRO was and this is the evidence that will assist in their procecution!

Harley-Davidson debuted an electric bike called the LiveWire.

Until the autumn of 2012, Lance Armstrong was almost universally heralded as a champion of the human spirit and a sportsman whose personal and professional accomplishments were nothing short of heroic. Handsome, intelligent, charismatic, seemingly fearless and thrown into adversity…

German police have apologised to a one-armed man who was fined €25 for having only a single handbrake on his bicycle, not two as required by law. The man, theatre employee Bogdan Ionescu, was reimbursed the money and "police apologised to him" three months after the incident, a Cologne police spokesman told AFP.

Racing through the streets of England, crowds have shown up in thousands to cheer riders on, but sometimes extreme fandom can come as a detriment to the cyclists. Crowds have poured on to the street making narrow roads much more limited, causing the cyclist to take measures into their own hands.

Bike riding is very popular in Norway, especially in the city of Trondheim. But there's a steep hill in that city called the Brubakken that most bicyclists won't try to climb. It's just too steep. So in 1993, the city built a bicycle escalator. It recently upgraded the escalator into the one you see pictured here. It's a lift that moves at about 3.4 miles per hour up a 427-foot hill with a gradient of about 10-18º.

The best parts about experiencing the Tour de France are outside the course itself, from the endearing scene before every race to the bliss of driving through one of the world's most eclectic landscapes.

A U.S. cyclist who pedaled across 50-plus countries for peace and charity was run over and killed in Russia by a drunken truck driver, ITAR-Tass news agency said Friday.

Vincenzo Nibali emerged on Sunday from a Tour de France marked by inclement weather and almost cruel eliminations of other favorites as the race’s first Italian winner in 16 years.

Urban biking is a totally different beast than peddling around suburban trails. And yet, most of us ride the same exact bike in both situations. That’s fine—whatever two-wheeler gets you from point A to B is good in my book—but the fact remains, biking in a city requires a different set of transportation tools.

Biking in Seattle can be less than mellow with all the hills, traffic and especially that rain. But those things are exactly what inspired the Teague team of bicycle designers to build the Denny bike for the Oregon Manifest bike design project.

After years of being overshadowed by the cheater, Greg LeMond is the only American to have fairly won the Tour de France. I apologize for being complicit in the lies against him.

Renárs Bundzis learns the hard way: don't tailgate a backhoe.

At the office or airport, 30 minutes of easy pedaling on a WeBike will get you a full iPhone charge and keep you fit.

It's not uncommon to spot cyclists in a city riding around with earbuds crammed firmly into each ear. To many people, this seems insane: city riding is dangerous to begin with, and eliminating one of your senses can only make it more perilous.

Yanking a bicycle from the docking station outside New York's Grand Central Terminal, a helmetless rider slung a golf bag full of clubs over his shoulder and, along with another rider wearing headphones but no helmet, merged into rush hour traffic.

In New York, smart street design helped the city have its safety and its speed, too.