For a man who has owned 27 Harley Davidsons in his lifetime, cruising in a 2005 Ford Falcon doesn't quite cut it.

With numerous court appearances and mounting legal fees in the coming months, former Rebels member Mike Smith had to make the difficult decision to sell his only motorcycle last week.

But the $14,000 from the sale won't even come close to funding his sons' legal defence - they face the daunting task of taking on the state government's anti-bikie laws.

Mr Smith is the father of two “Yandina Five” members, who will face trial in late March for allegedly breaching state laws that ban three or more “vicious lawless associates” gathering in a public place.

Police allege they are members or associates of the Rebels.

The group was arrested last month after they were seen at the Yandina Hotel on the Sunshine Coast on November 1.

Mr Smith's son Steven Smith, 28, his son-in-law Joshua Carew, 30, and Paul 'Max' Lansdowne, 57, are in custody after being refused bail on December 20. Mr Smith's other son Scott Conly, 36, and the other Yandina Five member, Dan Whale, 26, are currently out on bail.

The Supreme Court is also expected to hear another bail application for Mr Carew on Thursday.

Mike Smith told Fairfax Media there were concerns for his son Steven's mental health, because he had been locked in solitary confinement without family contact at the Arthur Gorrie Correctional Centre.

A psychiatrist is due to visit him on Thursday, and solicitor Zeke Bentley said the family was likely to to make another bail application in court next week.

“He's incredibly depressed and can't understand why he's in there,” Mr Bentley said.

Mike Smith - who was not at the Yandina Hotel when the group were spotted - confirmed that he and Steven formally quit the Rebels Sunshine Coast chapter over the weekend.

Mike said he resigned because he was the primary carer for his disabled wife, and her condition had worsened due to the stress of the legal battle.

“Our constitution says if you don't have a bike for 30 days you have to hand your colours in. Thats not the reason why I left. It's because of my wife's injury, I can't afford to be away,” he said.

“Everyone understands. It's a club. We join because we want to join, and you leave because your life changes...I don't need to be in the club to be mates with all the blokes.”

Earlier this week, acting Attorney-General David Crisafulli said one of his objectives for 2014 was to prove to the public that outlaw club members “are not misunderstood, much-loved people who just happen to have the odd tattoo and ride a bike”.

“They are big bad guys who are running a big bad agenda,” Mr Crisafulli said.

But Mike Smith disagrees. He said his family members were not criminals and did not fit the negative stereotype associated with criminal gangs.

“He's the guy that stops trouble and stops fights,” Mike Smith said of his son Steven.

Mike Smith has previously told Fairfax Media that he had criminal convictions, although none related to his Rebels membership.

For him, being a member of the club wasn't about drug-running or standing over people. Instead, he said, it was about mateship and a love of motorcycles.

“I've bought and sold 27 Harleys over the years...it's the only thing I love as much as my family,” Mr Smith said.

“One of my greatest pleasures in life is getting on the bike with my mates or my sons.”

He hopes to one day get back out on the road and ride with them again. But he's not optimistic about their short-term chances in the Queensland courts.

If found guilty, the Yandina Five face a potential mandatory 15-year jail sentence under the government's VLAD laws.

However, Mike Smith says the family will keep fighting even if they lose.

“I can't wait to get to the High Court,” he said.