Police in Bristol are appealing for the family or friends of a seriousy injured cyclist to come forward and tell them the identity of the man.
The 6ft tall white man came off his red Apollo CX10 mountain bike on the Portway in Bristol, beneath Avonmouth Bridge, on Wednesday morning, shortly after he visited the Shirehampton high street bakery.
He is described as being in his late 40s to early 50s and has a tattoo of a dagger through a white rose on his left forearm.
He was wearing a high-visibility jacket, a blue Crane cycle jacket or jersey, black tracksuit bottoms and black trainers. Police say he was carrying gloves, a hat, safety glasses and a loaf of bread.
The man is being treated for serious injuries at Frenchay Hospital, but police said they had been unable to identify him despite extensive inquiries.
After an unpromising start, having to be bribed by her parents to learn to ride without stabilisers, Sarah became rather keener on cycling in her university years, and was eventually persuaded to upgrade to proper road cycling by the prospect of a shiny red Italian bike, which she promptly destroyed by trapping a pair of knickers in the rear derailleur. Sarah writes about about cycling every weekend on road.cc.