this post was submitted on 12 Nov 2023
33 points (88.4% liked)

micromobility - Ebikes, scooters, longboards: Whatever floats your goat, this is micromobility

2337 readers
39 users here now

Ebikes, bicycles, scooters, skateboards, longboards, eboards, motorcycles, skates, unicycles: Whatever floats your goat, this is all things micromobility!

"Transportation using lightweight vehicles such as bicycles or scooters, especially electric ones that may be borrowed as part of a self-service rental program in which people rent vehicles for short-term use within a town or city.

micromobility is seen as a potential solution to moving people more efficiently around cities"

Feel free to also check out

[email protected]

[email protected]

[email protected]

[email protected]

[email protected]

[email protected]

[email protected]

[email protected]

It's a little sad that we need to actually say this, but:

Don't be an asshole or you will be permanently banned.

Respectful debate is totally OK, criticizing a product is fine, but being verbally abusive will not be tolerated.

Focus on discussing the idea, not attacking the person.

founded 1 year ago
MODERATORS
top 11 comments
sorted by: hot top controversial new old
[–] [email protected] 13 points 1 year ago* (last edited 1 year ago) (1 children)

I wouldn't be shocked (pun intended) by an electric motorbike that can do 160 kph, but the 10 minute charge rate would be ambitious. From their figures, that's for an 80% charge for a 6.4 kWh battery pack, or 5.12 kWh delivered. Assuming perfect charge efficiency, that's a power rate of 30.7 kW. The C-rate of this battery pack would have to be 30.7/5.12 = 6C.

For comparison, a Hyundai Ioniq 5 automobile has a 58 kWh battery pack and (apparently briefly) supports 350 kW DCFC. The best such battery pack would have a C-rate of 6.03C, but most likely is lower because this rate would imply a charge time of 10 minutes, not the 18 minutes advertised by Hyundai.

So if a major automaker's new(est?) EV is only marginally able to achieve the charge rate of 6C, it doesn't seem likely that a motorbike manufacturer will be able to beat this, let alone have a comparable average charge rate. The same analysis for some of the other electric motorbikes linked from the article have lower peak or average C-rates, and those motorbikes already exist.

TL;DR: charging is hard. Apply heavy skepticism.

[–] [email protected] 2 points 1 year ago (1 children)

You made your point about C-rates, but what about D-rates?

[–] [email protected] 6 points 1 year ago

Quiet motorcycles = big D energy.

Everyone knows that.

[–] [email protected] 4 points 1 year ago (3 children)

Sure it does.

Neither of those things.

[–] CharlesMangione 4 points 1 year ago (1 children)

Kinda seems like one of them-there advertisements.

[–] [email protected] 2 points 1 year ago

Like one of the false ones even.

[–] [email protected] 3 points 1 year ago

Surely a manufacturer would never post misleading specs!

[–] scottywh 2 points 1 year ago

Aww come on now... I bet it does...

With an 85 pound rider... For about five minutes... Lol

[–] [email protected] 2 points 1 year ago
[–] [email protected] 2 points 1 year ago (1 children)

When is it available? I searched online and just saw announcements that it exists, nothing from Yamaha with a release date.

[–] [email protected] 2 points 1 year ago

At some point in the future (maybe).