The Tour o’ the Borders sportive is set to be the region’s first – and only Scotland’s second – closed road cycling event this summer.
Organisers say the council has agreed in principle to close roads for the ride which passes through Peebles, Cardrona, Selkirk, Clovenfords and Roberton on Sunday, August 10.
It means the 3,000 or so amateur cyclists expected to take part will be able to enjoy the route traffic free for the first time.
Cyclists are expected to take between three and a half to eight hours to complete the 55- and 76-mile circuits.
The event – calculated to be worth around £500,000 to the Borders – is backed by the council and EventScotland, and has grown from 286 riders in 2012 to the predicted 3,000 this year.
Tour director Neil Dalgleish said: “There will be some disruption caused by the road closures, but we hope people see the economic benefits outweigh that.
“The economic impact of the event stands at around half a million pounds – a huge sum for a one-day event.”
Scotland’s only other closed-road sportive, the Etape Caledonia in Perth and Kinross, is currently worth £1million to that area.
Tour o’ the Borders new supporters this year include sponsors Scottish cycle clothing brand Endura and charity partner MacMillan Cancer Support.
For more information about the event and closed roads, visit http://tourotheborders.com/