What British rock group toured the western U.S. on motorcycles in the summer of 2012?

On July 10, 2012, my son and his friend and I stopped at the Mission Mountain Mercantile in Condon, Montana. We were on our way via a zigzag land route from Chicago to San Jose, hopping north and south from national park to national park.

There in Condon, where we stopped for gas, we met the members of this band, who were fulfilling a pledge of a fund-raising challenge, traveling through the Western mountains from British Columbia to Salt Lake City.

My impression was that they were well known in England; maybe also here. I didn’t know any rock bands.

We chatted and joked with them, and then they saddled up in pairs on the bikes. They led us on a two-lane Rocky Mountain road until they turned off, with much honking and waving.

I never did catch a name, but I still think of them and have several group photos.

Just wondering if this story rings a bell with anyone, especially in the UK, so I might find out who they were after all these years.