Load the dice !
As stated above light aircraft flying and riding a motorbike have the same level of risk acording to the stats.
The big differance is that 70% of motorbike accidents are NOT the fault of the biker and are visited apon them by other road users.
Flying is some what different with the pilot usualy having greater control of the situation and so as a pilot you have a much greater chance to load the dice in your favor.
Your actions as a pilot will have a much greater effect on your fate than your actions as a motorist , ask your self why is one club much cheaper to rent from that another ?. Could it be that they are cutting corners on maintenance for instance.
I could go on but you can minimise the risks to a point at which the risks in flying are no greater than other day to day activitys that we all take for granted.