Provincial police say 32 people died in motorcycle crashes on OPP-patrolled roads in 2014, a nine-year high.
And with the Victoria Day long weekend approaching, police are concerned as more motorcyclists are expected to hit the road.
The rider being ejected is one of the primary reasons that motorcycle crashes so often result in severe or fatal injuries, officials add.
When ejected, the rider continues to travel at the speed the vehicle was moving at the time of the crash, before landing on pavement, a windshield or some other hard surface.
Police say another major factor in motorcycle crashes is speed and loss of control, which was a factor in 14 of the 32 motorcycle deaths, or more than 40 per cent of fatalities.
Meanwhile, deaths involving off-road vehicles have hit an 11-year-low, with just 11 people dying in 2014.
However, police are reminding off-roaders to wear their helmets.
Of the 74 riders who died in off-road vehicle crashes from 2010 to 2014, 49 per cent were not wearing a helmet at the time of the crash.
Canada Road Safety Week underway
The approaching long weekend also means Tuesday marks the start of Canada Road Safety Week, which runs through to Victoria Day.
OPP and city police forces will be out raising awareness of the four driving behaviours that put motorists at risk.
That includes; impaired driving, not wearing seatbelts, distracted driving and aggressive driving.
In a statement, London police Sgt. Amanda Pfeffer says, "The deaths, pain and broken hearts that result from carelessness behind the wheel can be prevented."
In the city, there has already been one traffic-related fatality in 2015, and numerous others have suffered serious injuries.
And the better driving conditions that come with warmer weather don't necessarily mean significantly fewer accidents, says Sgt. Tom O'Brien with the London police's Collision Reporting Centre.
Over the past six years there have been over 61,000 collisions reported in the city, but 18,322 occurred from May to August, that's an average of 24 collisions per day.
The winter months from November to February accounted for 23,209 collisions, or an average of 35 per day.
O'Brien added, "Before we completely blame the weather for this increase we have to recognize that driver error, inexperience and lack of training is the major contributing factor. Then we can put the weather on the list. In my opinion, in London it is a very minor contributing factor."
According to police numbers, even on beautiful summer days, about 40 to 50 cars will be involved in collisions.
