Engineering the Copenhagen Wheel: Revolutionizing Biking?

  • Thread starter Thread starter Greg Bernhardt
  • Start date Start date
  • Tags Tags
    Copenhagen Wheel
AI Thread Summary
The discussion highlights the potential impact of electric power-assisted cycles (EPACs) on biking, noting their innovative design while acknowledging that similar regulations have existed in the EU since 2009. The conversation emphasizes the need for clear rules to differentiate EPACs from more powerful electric vehicles, which would involve mandatory tax, insurance, and driving tests. Current UK laws are more restrictive than EU regulations, allowing for higher motor power and speeds in the latter. The term "pedelecs" is commonly used in the UK. Additionally, safety concerns are raised, as studies indicate that motorists may misjudge the behavior of electrically assisted bikes, particularly regarding speed and acceleration compared to traditional bicycles.
Messages
19,773
Reaction score
10,725
Looks pretty awesome! Any thoughts from a engineering standpoint? Could it revolutionize biking?

https://www.youtube.com/watch?v=S10GMfG2NMY
 
Physics news on Phys.org
Nice design, but not exactly new. The EU has had regulations for the design and construction EPACs (electrically power assisted cycles) since 2009.

There need to be some rules to distinguish them from more powerful electric vehicles requiring mandatory tax, insurance, driving tests, etc.

Current UK law is a bit more restrictive than the EU regulations and is summarized here:
https://www.gov.uk/electric-bike-rules The EU regulations permit slightly higher motor power, and higher max speed with power assistance.

The generic name over here is "pedelecs". See google...

Some studies have found there are safety downsides. For example, motorists may wrongly predict how an electrically assisted bike will be ridden (speed traveling up hills, acceleration, etc), compared with a conventional bike.
 
Similar to the 2024 thread, here I start the 2025 thread. As always it is getting increasingly difficult to predict, so I will make a list based on other article predictions. You can also leave your prediction here. Here are the predictions of 2024 that did not make it: Peter Shor, David Deutsch and all the rest of the quantum computing community (various sources) Pablo Jarrillo Herrero, Allan McDonald and Rafi Bistritzer for magic angle in twisted graphene (various sources) Christoph...
Thread 'My experience as a hostage'
I believe it was the summer of 2001 that I made a trip to Peru for my work. I was a private contractor doing automation engineering and programming for various companies, including Frito Lay. Frito had purchased a snack food plant near Lima, Peru, and sent me down to oversee the upgrades to the systems and the startup. Peru was still suffering the ills of a recent civil war and I knew it was dicey, but the money was too good to pass up. It was a long trip to Lima; about 14 hours of airtime...

Similar threads

Replies
3
Views
148
Replies
10
Views
2K
Replies
1
Views
2K
Replies
1
Views
60
Replies
49
Views
8K
Replies
3
Views
3K
Replies
15
Views
2K
Back
Top