higher speeds is the issue. combined with the inexpereince and lack of physical skill and health of ebike riders. recipe for injuries.
that and most ebike riders are much older. you don’t see 22yo college grads on them, you see middle aged adults and retirees, because they cost $2000+ not $200.
Are you claiming this on intuition or on some actual statistics?
Also, on account of your use of mph, is this relevant only for the U.S? In the EU, e-bikes are pedelec only and capped at 25 km/h, which I don’t think is 16 km/h more than the average bicyclist puts out.
The stats don’t exist because ebikes have only been around for a few years. There are no stats on them yet, and they aren’t seen as a separate category of transportation from bikes.
I’m claiming i on experience of commuting in my city daily for over a decade and seeing the changes in trends, ages, and behaviours of other commuters on bikes. I also work in cycling advocacy, education, and infrastructure.
There are however, many articles form local hospitals/newspapers cited a big uptick in serious cycling injuries the past few years, and that was when ebikes became mainstream.
Yeah, speed is a killer. A doubling in speed represents a quadrupling of kinetic energy. So, while a 100 kg man-bike moving at 10mph (~16 kph) has (0.51004.444…^2) (0.5mV^2 for kinetic energy, m is mass in kg, V is velocity in m/s) 987 joules of energy, a 100 kg man-bike at 20 mph (0.51008.888…^2) has almost 4000 joules of energy.
I got the cheapest+lightest ebike w/gears that I could find (~$700 and there were bigger sales after I bought it), it has a 250w motor and a 15mph limit… though being out-of-shape I typically only saw 8-12mph.
ebikes ride about 10mph faster than on a bicycle.
higher speeds is the issue. combined with the inexpereince and lack of physical skill and health of ebike riders. recipe for injuries.
that and most ebike riders are much older. you don’t see 22yo college grads on them, you see middle aged adults and retirees, because they cost $2000+ not $200.
Are you claiming this on intuition or on some actual statistics?
Also, on account of your use of mph, is this relevant only for the U.S? In the EU, e-bikes are pedelec only and capped at 25 km/h, which I don’t think is 16 km/h more than the average bicyclist puts out.
The stats don’t exist because ebikes have only been around for a few years. There are no stats on them yet, and they aren’t seen as a separate category of transportation from bikes.
I’m claiming i on experience of commuting in my city daily for over a decade and seeing the changes in trends, ages, and behaviours of other commuters on bikes. I also work in cycling advocacy, education, and infrastructure.
There are however, many articles form local hospitals/newspapers cited a big uptick in serious cycling injuries the past few years, and that was when ebikes became mainstream.
Yeah, speed is a killer. A doubling in speed represents a quadrupling of kinetic energy. So, while a 100 kg man-bike moving at 10mph (~16 kph) has (0.51004.444…^2) (0.5mV^2 for kinetic energy, m is mass in kg, V is velocity in m/s) 987 joules of energy, a 100 kg man-bike at 20 mph (0.51008.888…^2) has almost 4000 joules of energy.
I got the cheapest+lightest ebike w/gears that I could find (~$700 and there were bigger sales after I bought it), it has a 250w motor and a 15mph limit… though being out-of-shape I typically only saw 8-12mph.