Record attempt global cycle race starts in Greenwich
A round the world cycle race leaves from Greenwich Park on Saturday.
The 18,000 mile record breaking attempt should see the winning rider cross the finishing line - the prime meridian - in time for the start of the London Olympic Games.
The team of ten are hoping to set the Guiness World Record for the fastest circumnavigation by bicycle beating the current 106 days achieved by Alan Bate in 2010.
Providing they start and finish at the same point and complete the required mileage, riders taking part in the World Cycle Racing Grand Tour may take any route they choose.
The race starts at 9am and it will be possible to track the progress of the all male competitors online.
Go to worldcycleracing.com for details.