Guardian journalist Matt Seaton once wrote that a cyclists' favourite bike-related tool is his or her mobile phone. With that in mind a recent news item about Nokia's on-bike phone recharger caught our attention.

You know what it's like, you go out for a bike ride and it's cut short because of a bike problem - such as a puncture. Instead of fixing it you think, I'll call home and get picked up instead. You reach for your phone and realise the blasted thing won't turn on. It's a flat battery, which makes your curse your phone and your bike and anything else that happens to be on your mind.

Well if Nokia have their way, soon enough, cursing your phone will be a thing of the past. The BBC recently carried a news story about Nokia's phone charging kit that uses a dynamo powered by a bicycle's wheels.

"Bicycles are the most widespread means of transport in many markets around the world, so this is just one more benefit to be gained from an activity people are already doing," said Alex Lambeek, Nokia vice president.

The charging kit comes with a handle-bar mounted phone holder and generates enough power from a 6mph, 10 minute journey to power 28 minutes of talk time or 37 hours standby time.

Be warned though, any cyclist wanting to re-charge their handset using the kit will need to cycle at a speed of at least 4mph, which is absolutely no use if you do happen to have a puncture!

More about this story can be found on the BBC news website -http://news.bbc.co.uk/2/hi/technology/10224363.stm