The world’s top riders will compete in the opening weekend of the Games.
The race route takes cyclists from The Mall, through west London and then out to Surrey and back.
The race cuts through Westminster, Kensington and Chelsea, Hammersmith and Fulham to cross the River Thames at Putney Bridge.
Riders will speed through Richmond Park, back across the Thames at Richmond Bridge before passing through Bushy Park, Hampton Court Palace and into Surrey.
Olympic Council of Ireland have been working with Cycling Ireland to locate Team Ireland cyclists at a training base close to Bushy Park, Richmond Park pre Games so this agreed routing would be an ideal fit for the road cyclists such as Ireland’s Nicolas Roche (pictured).
From Richmond the athletes head off on a large loop through Surrey taking in Walton on Thames, Weybridge, West Byfleet, West Horsley and Dorking.
This is where a 15.5km (9.6 miles) circuit around Box Hill, including the National Trust’s Zig Zag Hill, kicks in, according to London 2012.