The reason why electric motorbikes are failing
I do enjoy Ryan FortNine's stuff and his film on how Harley Davidson sewed the seeds of its own demise is a top piece of work.
( , Sun 13 Jun 2021, 11:44, Share, Reply)
I do enjoy Ryan FortNine's stuff and his film on how Harley Davidson sewed the seeds of its own demise is a top piece of work.
( , Sun 13 Jun 2021, 11:44, Share, Reply)
Totally agree with the ending
It's difficult to sell a bike I've built.
( , Sun 13 Jun 2021, 16:45, Share, Reply)
It's difficult to sell a bike I've built.
( , Sun 13 Jun 2021, 16:45, Share, Reply)
yup.
I've ridden my home made ebike more than my motorbike recently. Best pub scooter ever.
( , Sun 13 Jun 2021, 19:42, Share, Reply)
I've ridden my home made ebike more than my motorbike recently. Best pub scooter ever.
( , Sun 13 Jun 2021, 19:42, Share, Reply)
I have a garage full of dead bikes I haven't got round to fixing/selling.
( , Sun 13 Jun 2021, 20:39, Share, Reply)
( , Sun 13 Jun 2021, 20:39, Share, Reply)
Very interesting
I don't have an issue with his conclusions as he adds the caveat "for now", but I'd have more time for someone saying their bike has poor range if there wasn't a gaping hole in the frame that could have batteries in it. Maybe weight is the limiting factor.
( , Sun 13 Jun 2021, 22:45, Share, Reply)
I don't have an issue with his conclusions as he adds the caveat "for now", but I'd have more time for someone saying their bike has poor range if there wasn't a gaping hole in the frame that could have batteries in it. Maybe weight is the limiting factor.
( , Sun 13 Jun 2021, 22:45, Share, Reply)
Yes
And, as he pointed out in the video, at high speed your power needs go up literally exponentially. Air resistance goes up with the cube of the speed so for a certain bike and rider trebling the speed from 20 to 60mph requires twenty-seven times as much power to push air out of the way (rolling resistance not included). He quotes 40 miles range around town on that battery which isn't massive so to compete with a petrol bike doing 150 motorway miles at 70+ would need a trailer of batteries.
( , Sun 13 Jun 2021, 23:36, Share, Reply)
And, as he pointed out in the video, at high speed your power needs go up literally exponentially. Air resistance goes up with the cube of the speed so for a certain bike and rider trebling the speed from 20 to 60mph requires twenty-seven times as much power to push air out of the way (rolling resistance not included). He quotes 40 miles range around town on that battery which isn't massive so to compete with a petrol bike doing 150 motorway miles at 70+ would need a trailer of batteries.
( , Sun 13 Jun 2021, 23:36, Share, Reply)
I get the maths behind it
I was more wondering why he hadn't used the available space on that specific bike to maximise the range, and was thinking the strength of the frame/suspension etc. might have been the limiting factor.
The technology will get there - the Triumph TE-1 has a target range of 120 miles which I'd certainly start to consider. It also looks rather nice!
( , Mon 14 Jun 2021, 7:52, Share, Reply)
I was more wondering why he hadn't used the available space on that specific bike to maximise the range, and was thinking the strength of the frame/suspension etc. might have been the limiting factor.
The technology will get there - the Triumph TE-1 has a target range of 120 miles which I'd certainly start to consider. It also looks rather nice!
( , Mon 14 Jun 2021, 7:52, Share, Reply)
I think it's that he can remove the battery easily
Makes it easy to ride somewhere and chain up the bike and take the battery away, stop it getting nicked, maybe recharge it.
And, frankly, for the use he proposes for it the one battery is sufficient. It's a good proof-of-concept.
( , Mon 14 Jun 2021, 16:48, Share, Reply)
Makes it easy to ride somewhere and chain up the bike and take the battery away, stop it getting nicked, maybe recharge it.
And, frankly, for the use he proposes for it the one battery is sufficient. It's a good proof-of-concept.
( , Mon 14 Jun 2021, 16:48, Share, Reply)