Rallies have been held across the country in protest against Queensland's anti-bikie laws.

More than 1,000 motorcyclists gathered outside State Parliament in Brisbane on Sunday, asking the Vicious Lawless Association Disestablishment laws be scrapped.

Many recreational riders claim they have been unfairly targeted and harassed by police since the laws were introduced.

President of Queensland's Liberal Democrats, Gabriel Buckley, says there is widespread concern about the legislation.

"These laws affect everybody so it's not surprising that there's a wide range of people," he said.

"Although [the laws have] been sold as a targeted crackdown on organised crime groups, they're so broadly written that they could be used against any group of people."

Rally organisers say more than a dozen similar rallies have been held around the country.

Hundreds of recreational riders took part in a rally in Adelaide to protest the laws.

Pedro Pederson from the Brothers Twin Group says not all bikies are criminals.

"We ride to make money and save money for the kids to support different schools and the Government is trying to put a thing through," he said.

"[The laws would mean] that we can't ride in groups of three. How are we supposed to do our runs to raise money for kids?"

However, Queensland Treasurer Tim Nicholls says the laws, which include mandatory sentences of 15 years on top of the usual penalties for serious crimes committed by gangs, are about keeping the community safe.

"What I would simply say is that our laws are simply targeting criminal gangs. If you are a valid and honest motorcycle rider you've got nothing to fear," Mr Nicholls said.

"But people who are engaging in gangs and criminal activities have a lot to fear."