The rising number of motorbike deaths and injuries has prompted a call for urgent action to either restrict access to motorbikes or have compulsory retesting for drivers, a car review website says.
This comes after 13 serious accidents since the start of 2018 involving motorcyclists, who now make up 16 per cent of road deaths, says editor of dogandlemon.com, Clive Matthew-Wilson.
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"A large majority of those killed were aged between 40-59, and in 70 per cent of fatal accidents involving motorbikes, the rider was at fault," he said.
"The bottom line is this - it's really unsafe to ride a motorbike and even more unsafe if it's a big bike and you're middle-aged."
On average, the risk of being killed or injured in road crashes is 21 times higher for motorcyclists than for car drivers over the same distance travelled.
Mr Matthew-Wilson wants to see access restricted or to make retesting compulsory for riders who have not owned a motorbike in the previous two years.
"As we age, our reaction times slow, and our ability to control a large, moving object such as a motorbike, drops substantially," he said.
"There needs to be a much tougher testing regime for all riders, which gets tougher the older you get and the larger the motorbike."