Motorcyclist credits bystanders with saving his life after crash

A motorcyclist who was trapped under a car after a collision on Brisbane's north side believes he owes his life to a group of bystanders.

Tyler Weibe was on his way to work on Wednesday morning when the crash occurred, leaving him with broken ribs, a broken collarbone and a collapsed lung.

Initial investigations showed a vehicle, travelling on Gympie Road in Kedron at about 8:30am, veered into the wrong lane and struck another car, police said.

The second vehicle hit Mr Weibe's motorcycle and pinned the man underneath.

"I was being dragged and when it stopped, my head and chest were under the car," Mr Weibe said.

"Initially it was 'can I get out?' and then it was 'man I am dying, this is it.'

Mr Weibe said he was trapped under the car for about two minutes before a group of bystanders came to his aid and attempted to lift the vehicle.

"I started getting dragged out and then [the car] came back down on top of me in a different position," he said.

"I could hear all my ribs cracking again and breaking and I didn't have that extra breath anymore.

"Luckily a split second later, the car lifts up and I'm pulled out."

The father of two was taken to hospital in a life-threatening condition but has since stabilised.

He expressed his gratitude for the "good Samaritans", who he said he "wouldn't be here" without.

"I get more time with my daughters, I get more time with my family and a second lease on life," he said.

"I can't say thank you enough."

Cameron Vellacott witnessed the accident and said about 15 people ran to help Mr Weibe.

"It was heartwarming to see so many people just jump to the aid of someone so quickly, who they clearly didn't know and had no context for the situation," Mr Vellacott said.

"I'm really just glad that all the people who were involved are ok."

Mr Weibe, a Canadian expat, received his Australian citizenship in January this year, and said the help he received after the crash made him "proud to be here".

"It really showed Australia and Queenslanders stepping up," Mr Weibe said.

Queensland Police are investigating the collision.