One in eight motorcyclists has reported being involved in a crash in the past two years, a new study shows.
Ahead of the May bank holiday weekend, the Road Safety Authority (RSA) and gardai are reminding bikers to ease off the throttle.
To date in 2019, there have been four fatal collisions involving motorcyclists - three more than during the same period last year.
An RSA survey of 450 motorcyclists found that one in eight reported having been involved in a collision in the past two years, while three in five had had a near miss.
July was found to be the most dangerous month for crashes.
RSA chief executive Moyagh Murdock said: "Motorcyclists account for approximately 12pc of road deaths on average each year, but motorcycles represent less than 2pc of the vehicle fleet in Ireland. That's a staggering fact.
"Of the motorcyclist drivers killed over the last five years, from 2014 to 2018, the vast majority of these were male riders."
The RSA and gardai are also highlighting the misuse of quad bikes and scramblers on the road and in public spaces such as parks.
They said these vehicles pose particular dangers to young people: three of the four people who died in Ireland as a result of an incident involving a quad bike or scrambler were aged 18 or under, in the period 2014 to 2017.
Keith Synnott consultant at the National Spinal Injuries Unit in the Mater Hospital, said: "Quad bikes and scramblers are not toys, they are heavy, dangerous pieces of machinery that can cause life-changing injuries or death.
"Riders risk spinal injury following a collision on a quad bike or scrambler.
"Impacts often happen on areas of uneven ground or as a result of unstable vehicles, especially in the hands of children."