Much of Sheffield city centre will be sealed off to traffic for four hours on Sunday with thousands of people expected to saddle up for a major cycling event.
The Sky Ride event running from 11am until 3pm will also mean Ecclesall Road is closed as far as Endcliffe Park.
The event – one of 14 around the country – aims to give bikers a five mile ride along traffic-free roads.
The route starts at Devonshire Green and circles the city centre, taking in Fitzwilliam Street, Moore Street and St Mary’s Gate.
After riding along the perimeter of the Sheffield United ground, cyclists will continue along Sylvester Street and into the city centre on Surrey Street and Division Street before heading up Ecclesall Road.
Great Britain BMX rider Curtis Manaton will formally launch the ride and it will be led by former boxing champion Johnny Nelson.
Keen cyclist Christine Vaughan, of Hillsborough, said: “I love cycling and I’m really looking forward to taking part in Sky Ride Sheffield because it will be the first big cycling event I’ve ever been part of.
“It’s a great way to promote cycling and encourage everyone who has been inspired by the Tour de France to have a go.”
Lynne Penistone said on the Star’s Facebook page: “It will be less of a problem than all the road works round there the last few weeks and will probably bring in some much needed business.”
But Sam Meeson said: “All that countryside to exploit and they decide to close off a city centre!
“Absolutely nuts – are the event organisers going to refund the loss to local businesses?”
Riders will be able to start their ride at any time during the four hour window.