Just checked, and not only are there about 75 deaths of people from using ride on lawn mowers (as compared to 64 deaths a year of cyclists), ride-on lawnmowers and lawn tractors injure more than twenty five thousand people every year (in Canada).

Also, (I like this), a British study, based on 1999 data, found that: far more Britons were injured by magazines (4,371) than chainsaws (1,207) ; accidents involving tea cozies jumped to 37 from 20 the previous year; there was a rise (to 5,945 cases, up from 5,137) in hospitalisations for men who suffered "trouser accidents"

So really, if you're worried about riding your bike, you can be hospitalized, sitting in bed, reading a magazine, having tea too.