A Dublin dad-of-three who founded a charity motorcycle fundraiser for Down Syndrome Ireland (DSI) tragically died while participating in the event.
Aidan Lynam died after the bike he was travelling on collided with a car just outside Kilkee in Co Clare yesterday.
He had been taking part in the annual 'Rev-Up for DSI' event which he founded a decade ago after one of his children was born with Down Syndrome.
Mr Lynam - who was in his early 40s - was last night described as a "phenomenal father, colleague and advocate overall for people with Down Syndrome," by the charity's chief executive Pat Clarke.
The accident occurred on the Kilrush to Kilkee road shortly before noon.
A collision occurred between Mr Lynam's motorcycle and a car being driven by a female motorist. She wasn't injured in the incident.
The Coast Guard was contacted by a member of the public who came across the scene.
Mr Lynam was airlifted to the University Hospital in Limerick where he was later pronounced dead.
The stretch of road where the collision took place was sealed off as Garda Forensic Collision Investigators carried out an examination of the scene.
Mr Lynam worked as the fundraising co-ordinator with DSI. He was married to Nikki and the couple had three young children together, Robyn, Jake and Harry.
Mr Lynam also worked as a motorcycling journalist. He founded 'Rev Up for DSI' in 2005 after his daughter Robyn was born with Down Syndrome.
It is operated as a "mystery tour", and only the organisers know the base and route.
There were 150 motorcyclists participating in this Bank Holiday weekend's event, which was subsequently cancelled after the accident.
DSI last night said that Aidan and his friends have helped to raise €1.6m for the organisation through a number of events over the years.
"It is with inexpressible grief that we learned of the death of our dear friend and colleague Aidan Lynam," a spokesperson said.
"Our thoughts and prayers are with our dear friend and colleague, his wife, their three children and all of his loved ones.
"Aidan was a much loved and valued senior member of our team at Down Syndrome Ireland, committed to his family and his work and all of our hearts are simply broken as we struggle to come to terms with this great loss."
DSI chief executive Mr Clarke told the Herald that Mr Lynam was a "fabulous friend and colleague" who did "phenomenal work dealing with our many fundraisers".
"Aidan was a phenomenal father, colleague and advocate overall for people with Down Syndrome.
"I think over the next week we will actually find out how many peoples' lives that Aidan has touched over the last number of years," he added.
"He was a phenomenal guy in the biking world, his tentacles went out to so many people."
The group participating in the fundraising event last night ate a meal together in the hotel where they were staying in Co Clare and were "celebrating Aidan's life".
Mr Clarke said the mood was "very, very sombre" but that everyone has vowed to continue the event in the future.
Comedian PJ Gallagher also paid tribute to his late friend on social media last night.
"This guy only ever called me to help other people. I'm gonna miss you buddy.
"Wish there was more like you," he wrote alongside a picture of the pair.
"A life spent trying to improve the lives of everyone he met and most of all a biker," Gallagher added.