Adelaide motorcyclist Aidan Alchin, 23, killed just months before wedding to Miss Universe finalist

A young motorcyclist killed in a devastating Adelaide crash was just two months away from marrying his Miss Universe finalist fiancée.

Salisbury Heights man Aidan Alchin, 23, was riding his Yamaha motorcycle on Gorge Rd at Paracombe when he collided with a Mitsubishi sedan and a Subaru sedan about 12.50pm on Monday.

Alchin died at the scene, while the drivers of both cars escaped injury.

He was due to marry his fiancée, Hayley Sutter, on December 12 in Hamilton, South Australia, after five years together.

The couple’s wedding website was on Wednesday still counting down the days until they were due to tie the knot.

Sutter, a South Australian state finalist in Miss Universe Australia in 2025, had filled her social media with photos of the couple together. 

Alchin had previously survived a serious crash in 2022, suffering injuries to his lower back.

The accident prompted a career change, with Alchin leaving construction and joining his father’s locksmith business.

‘A mate and a brother’

Alchin was a much-loved member of Adelaide’s motorcycle community, with friends remembering him as someone with a “heart of absolute gold”.

He had been planning to take part in a motorcycle ride on Friday in memory of another rider.

The group Two Wheel Turtles said the ride would now also honour Alchin.

“As some of you are aware, yesterday we lost a mate and a brother,” the group said. 

“Aidan was so welcoming to the bike community, great to have a yarn and a laugh with. 

“Aidan’s NGR ride would have been this Friday. Let’s get around this ride and make it the biggest, for Aidan!

“Ride eternally Aidan! The TWT crew will miss you mate.”

Friend Louis Parcel remembered the “almost 7FT legend” as someone who would “literally drop anything for you”.

“I remember a few times getting random calls from anonymous numbers saying ‘I know where you are.. look up’ and then seeing Aidan on top of some huge building hanging off waving,” he said. 

“Seriously thought this man would literally drop anything for you and have your back always. He was like our personal security guard every time we were filming in the city or out. 

“He was always wild but with (a) heart of absolute gold.”

Another longtime friend said he was struggling to comprehend the loss.

“Words can’t explain how much I miss you, bro,” he said. 

“From all the birthdays, hanging out, the feeds, all of us boys together, the laughs and all the memories we made over the years.

“I’d give anything to have those days back. 

“I miss you so f****** much, bro. Rest easy bro. We love you Aidan.”

Fellow rider Dylan Thorp said Alchin’s death was a heartbreaking reminder of how quickly tragedy could strike on the road.

“It’s a heartbreaking reminder of just how quickly things can change when we’re out on the road,” he said.

“Please look out for your mates, check in on one another, ride within your limits and do everything you can to make it home safely.

“The motorcycle community is a family, and today that family has lost one of its own.”

Road safety plea

Alchin was one of two people killed on South Australian roads over the Labour Day long weekend.

A 52-year-old man was killed in a separate crash in Virginia about 8:45pm on Sunday.

SA Police Inspector Mark Atkinson said the deaths had prompted a renewed plea for motorists to take care on the roads.

“We need members of the community to ride and drive like their life depends on it, because it does,” he said.

“Please make safer choices before more families are left grieving.”

Police urged motorcyclists to ride within their capabilities, reduce their speed and adjust their riding to road and weather conditions.

Drivers were also reminded to obey speed limits, avoid distractions, wear seatbelts and never drive while impaired.