'Only' 500 turn up for Lance Armstrong LA Twitter ride

In what is proving a regular tweet, seven-time Tour de France winner Lance Armstrong was at it again on social network site Twitter as he invited riders out to join him for an informal ride in Los Angeles yesterday.

On Wednesday afternoon, Armstrong posted the following tweet invitation on his Twitter page: "Hey LA - get out of your cars and get on your bikes. Time to ride. 7:30 tomorrow am. Griffith Park, LA Zoo parking lot. See you there.."

The hour long bike ride attracted around 500 cyclists to Griffith Park in LA. At least one cyclist returned early, saying the pack was travelling too fast, and after the ride Armstrong joked that some cyclists had given him a "hurt on the climb" up a hill.

The cycling champ issued Twitter invitations last month for cyclists to join him on rides in Glasgow and Dublin. Around 300 turned up in Glasgow for a 60-mile ride, while more than 1,000 cyclists attended the Dublin ride.

Armstrong retired from racing in 2005 but returned to competitive cycling in January and finished third in the 2009 Tour de France. He formed the new Team Radio Shack in July, and the team will make their debut in Australia’s Tour Down Under from January 17-24.

You can keep yourself up-to-date with Lance’s tweets at http://twitter.com/lancearmstrong