That's the opinion of Dubbo Ulysses Motorcycle Club member Geoff McMillan who says motorbikes are invisible to the majority of motorists.

"Motorists simply do not see them," he said. "It's a serious situation that most of us (motorcyclists) are aware of.

"But unfortunately awareness is not enough - bike riders need to be more vigilant themselves.

"If they want to avoid accidents they need to be constantly alert to the possibility they haven't been seen by approaching vehicles."

Promoting the 'Look Out For Yourselves - Be Seen' motorcycle safety campaign, Mr McMillan urged all road users to take greater care to look for bikes and slow down.

"The only way we can reduce the number of crashes is for all road users to be more alert and ready to take evasive action," he said.

Acting Sergeant Simon Madgwick of Dubbo police called on motorists of all persuasions to take greater care and watch out for bikes.

"Motorists have to understand that motorcyclists have as much right to be on the road as anyone else," he said.

"One of the hardest things we have to do is inform families when their loved ones have been killed.

"A lot of accidents could be avoided if people took more care."

Council's road safety officer Kristine Long said there had been some dreadful crashes in and near Dubbo in recent years, which highlighted the alarming increase in motorcycle accidents.

"More than 95 per cent of road crashes can be attributed to human error or bad behaviour," she said.

"The aim of this campaign is to encourage all road users to be more vigilant and for motorcyclists in particular to be more alert and take greater precautions."

Between 1998 and 2002 two motorcyclists have been killed and 59 seriously injured in road accidents in the Orana local area command.