A former cop and spokesman for a safety group warns motorcycling is a risky business, as more riders take to the road.

Stuntman and entertainer Johnny Danger was killed on ANZAC Day, bringing this year's tally to 23 bike deaths in four months.

Institute of Advanced Motorists president, and retired police officer, Carey Griffiths says it's always tragic to lose a rider.

He says there are now 148,000 motorbikes registered on our roads.

"We're more vulnerable both in terms of our own actions and also vulnerable when it comes to other peoples actions or issues with the road's surface."

The hot summer has a deadly downside, it's being blamed for the increase in motorbike deaths.

The 2018 motorcycle death toll sits at 23, more than double last year's toll of 10.

Roadsafe operator Andrew Templeton told Kate Hawkesby it is because there are more people wanting to get out in the fresh air.

"In summer between October and March there's 50 percent more riders on the road, and we've had a particularly good summer so there's just more riders on the road."

LISTEN ABOVE AS ANDREW TEMPLETON TALKS TO KATE HAWKESBY