I’ve been very interested in bicycle gadgets for a while. I designed a backpack for bicycle commuters and patented a bicycle lock, both things that I’ll share in detail here at a later date. But today I want to share a brilliant, even revolutionary new advancement in bicycle design.

This Ultra-Efficient Bike Has No Chains and No Derailleurs

This video explains how it works:

Absolutely brilliant! No more chains, much more efficiency. Wireless electronic shifting and a split pinion that adjusts to the next gear while still engaged with the previous gear.

This isn’t just a better design, it’s a leap forward. I have questions around how it would perform in dirt and mud, and reliability in ‘the real world’, but those are things that can be tweaked over time. The reality is that this isn’t a tweak, it’s a fundamental shift in design that is going to change the future designs of bicycles, and other drive shaft designs, in the years to come.

Amazing!