Tour de France winner Bradley Wiggins has spent the morning in training at Box Hill in Surrey.
He was joined by Olympic Gold hopeful Mark Cavendish and GB team mates for several laps of the climb in the Surrey heat.
Mark Cavendish will lead Britain's charge for road race victory on Saturday before Wiggins goes for gold in the time trial on Wednesday.
Riders from nations including Australia, France, Austria, Canada, Belgium and China also trained on Box Hill, which is set to be key to the outcome of the race.
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Mostly dry and bright this afternoon with cloud building and rain arriving from the west later.
A risk of heavy downpours in parts of Kent this afternoon. Elsewhere, mostly dry with sunny spells.
Thunderstorms and heavy downpours caused flooding across the Meridian region yesterday. Some residents have been evacuated from their homes.