Multiple Tour de France stage winner Mark Cavendish will compete in the RideLondon-Surrey Classic on 2 August.
The Isle of Man sprinter, 26, will ride with the Etixx-Quick-Step team in the men's pro race.
The 200km event, televised live on the BBC, starts at Horse Guards Parade and heads out to Surrey before finishing with a sprint along The Mall.
"I can't wait to ride this year," said Cavendish. "This race is already an event every rider wants to win."
There will be 25 teams of six riders competing in the men's race with record prize money on offer.
More than 95,000 riders are expected to take part in RideLondon's five events over the weekend of 1-2 August.