Forum user claims US motorcycles are 20x deadlier than guns

"A motorcycle in the US kills 20 times more than a civilian gun," according to a forum user

There are 310 million non-military firearms in the United States causing about 11,000 deaths annually. There are 7.1 million motorcycles causing about 5,000. According to the thread's opening calculation, a firearm is 20.9 times less lethal than a motorcycle: one annual death per 28,181 guns versus one per 1,342 two-wheeled vehicles. The figure circulates as a comparative exercise, relativizing the narrative that criticizes the presence of guns in the US. It is not that motorcycles shoot; it is that they fall.

The forum user's calculation: 1 death per 28,181 guns and 1 per 1,342 motorcycles

The starting point is federal data from 2009, counting 310 million non-military weapons in civilian hands, and statistics from 2008, with 5,290 fatal motorcycle accidents out of a fleet of 7.1 million units. The resulting ratio does not measure how many people use each object, but how many exist. This nuance both supports and questions the calculation.

If exposure is counted instead of units, the result shifts. The thread cites data raising the percentage of US households with any firearm to 33% out of 114 million homes. That is about 38 million houses with guns, at a rate of 10 per household, according to that calculation. On this basis, the forum user argues the motorcycle would still be more lethal, but only twice as much. The outcome depends on what is placed in the denominator.

• Civilian firearms in the US: 1 death per 28,181 units, according to the calculation
• Motorcycles in the US: 1 death per 1,342 units, according to the calculation
• Motorcycles in Spain: 1 death per 3,729 units, according to the calculation

Can you compare a gun with a motorcycle?

The fundamental objection raised in the thread is that a gun and a motorcycle are not the same thing. One serves for transportation; the other, according to critics of the comparison, has no peaceful use beyond target shooting or hunting. Ranking both objects by danger would be like classifying chorizo sausages and mountain bikes by their capacity to cause harm. Those defending the calculation respond that this distinction does not save the motorcycle: guns are used daily in shooting ranges, in the field, and as a deterrent against crime, yet, according to their calculation, they kill fewer per unit than a vehicle that merely transports.

There is an asymmetry that does not disappear. With a gun, the victim is usually a third party. With a motorcycle, the one who falls is the driver. Measured by voluntarily assumed risk, the motorcycle loses; measured by damage to those who chose nothing, the gun wins by a landslide. Statistics do not resolve this dispute. They only obscure it.

Helmets, road surface, and the car next door

According to the forum user proposing the calculation, approximately half of US motorcyclists ride without helmets, a factor that inflates the vehicle's mortality and which barely exists in Spain, because fines ensure almost nobody skips it. Correcting for this extreme, he argues that US motorcycle lethality would drop below European levels.

Then there is shared blame. According to one participant, in seven out of ten motorcycle accidents, a car is committing an infraction, and in slightly less than half, the infraction is the rider's. According to that same participant, there remains 25% of incidents where the sole responsible party is the car driver. As another forum user summarizes, the best rider in the world cannot control the road surface, the rain, or the person coming head-on.

Spain: The calculation also favors motorcycles over US civilian guns

Applied to Spain, there are 2.7 million motorcycles and about 700 annual deaths: according to that calculation, one fatality per 3,729 motorcycles. The relative lethality of Spanish motorcycles is, with these numbers, 7.5 times higher than that of US civilian firearms, always according to the same calculation. Spain does not emerge, with these figures, as the country with the least deadly two-wheel fleet.

Comparison with cars widens the gap: per kilometer traveled, a US motorcycle multiplies the risk of a fatal accident by 35 compared to a passenger car, according to data cited in the thread. That data uses kilometers traveled, not available units.

Everest and the trigger

K2 kills one in three who attempt it, and Everest one in four, according to the same forum user. He himself says he has not asked to ban motorcycles. The discussion is not whether the rider assumes huge risk—they do—but why, according to his argument, the same type of data that elicits a shrug when discussing altitudes becomes a crusade when discussing triggers.

What if the problem were measuring by available unit instead of by exposed person?