Welsh Cyclist Luke Rowe bought a bike for a member of staff at a Cardiff hospital, after his bike was stolen while in work.
Tom Roberts, who is a research fellow at the University Hospital of Wales, tweeted to say his bike was stolen while working on the intensive care unit.
The tweet generated a huge response online, with thousands of likes and retweets.
And the tweet caught the attention of Team Ineos Luke Rowe, team-mate of fellow Welshman and Tour de France winner Geraint Thomas, with the 30-year-old offering to replace his bike.
Dr Roberts has said he will receive his bike from Rowe on Monday.
"Seeing all the offers of help restores your faith in people," he told BBC Wales.
"Witnessing how people are empathising with you and also trying to help you out as much as they can is humbling.
"Yesterday I'd been working in intensive care, came out of work about 8:45pm and went down to where I normally park my bike. The lock had been cut through and my bike was missing.
"It's pretty disappointing at the moment, particularly when the NHS is being held in potentially a higher regard than it normally is.
"For someone to do that in a hospital when you are on shift working to help people and save their lives, that's a little bit disappointing."
