The Copenhagen Wheel Makes Your Bike Electric, And It’s About To Go On Sale In 2009, MIT researchers wowed the world with a way to electrify any old bicycle. Now, it's finally a product you can buy.

TA5 lets you use QR hubs on thru-axle frames on new bikes, including with SRAM UDH. Is this the rare good new standard?

We would recognise all is features on a modern bicycle. A diamond shaped frame, pedals below the saddle that power the back wheel through a chain and gears, handle bars to the front wheel ...