Motorcyclists are being urged to ease off the throttle this Bank Holiday weekend.

In a Road Safety Authority survey of 450 motorcyclists, 12% admitted that they been involved in a road collision in the past two years.

RSA CEO Moyagh Murdock said motorcyclists are particularly vulnerable road users who are over-represented in road collision figures.

So far this year, four motorcyclists have died on Irish roads, compared to one for the same period last year.

Previous RSA research has shown that speeding is a factor in half of the fatal collisions involving motorcyclists.

This weekend's road safety campaign is particularly targeting recreational motorcyclists - those who take their motorbikes out in better weather or the summer.

Ms Murdock urged seasonal drivers to exercise caution and ensure their bike is in a roadworthy condition.

Speaking on RTÉ's Morning Ireland, she said there is a big increase in fatal crashes at weekends and on Sundays in particular, with speed and alcohol a factor in many incidents.