She was one of nine riders who took part in the Let's Talk bike ride from Perth to Warrnambool.

"I'm exhausted, I'm overwhelmed - it's the best thing I've ever done in my life," Ms Easton said.

However, she was lucky to be able to cross the start line after she was hit by a car a week before the event.

Incredibly, Ms Easton rode the 3280 kilometres with a broken arm.

Ms Easton said all Australians needed to step up to help remove the stigma surrounding mental health.

"We've got to normalise it - just like we normalise cancer and diabetes - we've got to talk about it," she said.

Ms Easton said the biggest issue people were facing was isolation.

"Isolation was the biggest issue - not having anyone to talk to," she said.

Fellow rider Mark Powell said the ride was incredibly eye-opening.

"Emotionally, I wasn't prepared for the amount of stories we heard along the way," Mr Powell said.

"We heard so many stories of tragedy and we still believe that if we can do something about breaking the stigma, we can do something about getting people to seek help early."

He thanked the community for their support on Sunday.

"I'm feeling overwhelmed with emotion seeing all these people," he said.

"I wasn't expecting so many people - I'm just blown away."

Mr Powell said the ride was incredibly rewarding.

"The people we met, the people we spoke to, the talks we gave - that's the stuff that will stick with me for the rest of my life," he said.

Mr Powell said while the ride was not a fundraiser, generous community members had donated to the Let's Talk foundation along the way.