Imagine the possibilities with the world's first chain-less electric bicycle, HONBIKE

[Andy-Mat]

This appears to be a possible new e-bike for some members, the ad I found while doing an online search, but thats all I know. I have not noticed pricing anywhere, that you will need to locate yourself if you are interested in buying!

regards
Andy

 

[oyster]

Honbike HF01

€2,199.00

 

[Woosh]

no chain no fuss? what happens if your battery is flat?

 

[hopperhenderson]

i really impressed when i saw world's first chain-less electric bicycle then i also want to buy it this is the amazing bicycle we can easy to drive it is very affordable in price.

 

[Andy-Mat]

no chain no fuss? what happens if your battery is flat?

The same way as ayn e-bike with a working chain (only far more reliable!), you get home on muscle power....
regards
Andy

 

[AndyBike]

It's not the worlds first, we've had a number of bikes using things like shaft drive, 1880 was the first, and theres also a few modern ones currently available.

https://en.wikipedia.org/wiki/Shaft-driven_bicycle

As to their vid lol, talk about misleading. 14mph and the roadie is struggling to keep up ?, thats just so ridiculous.

 

[Stanebike]

So the bike is shaft drive rather than chain. Back in the eighties I had a Moto Guzzi shaft drive motorbike. Very nice and no cain to lube or adjust during service. But chains transfer power more efficiently than gears. So energy will be lost by the gears needed to transfer th drive through 90° to the shaft and then through another 90° to the wheel. Also the gear assemblies are likely to cost and weigh more than simple chain and sprocket arrangement.

 

[Andy-Mat]

So the bike is shaft drive rather than chain. Back in the eighties I had a Moto Guzzi shaft drive motorbike. Very nice and no cain to lube or adjust during service. But chains transfer power more efficiently than gears. So energy will be lost by the gears needed to transfer th drive through 90° to the shaft and then through another 90° to the wheel. Also the gear assemblies are likely to cost and weigh more.

Correctly cut straight gears, waste very little power, which is why they are used often in car gearboxes for racing and rallying, the only negatives being (with high reving cars), that they are "LOUD".... But I doubt if that will be much of a problem with muscle power assisted by a motor!
This may prove interesting, though the article is not 100% complete to my mind:-

The Advantages And Disadvantages Of Straight Cut Gears

You probably know already that they make a racket but what are the pros and cons of straight-cut gears?

www.carthrottle.com

regards
Andy

 

[I893469365902345609348566]

NASA's gears made with Bulk Metallic Glass have very high wear resistsnce and don't need lubrication. It's only a matter of time before they're 3D printed using that material to be far to expensive for bicycles.

Bulk Metallic Glass Gears (BMGG) - NASA

NASA’s Bulk Metallic Glass Gear (BMGG) project is developing technologies that could be the nuts and bolts of missions to explore destinations throughout the

www.nasa.gov

The costs will reduce, Sennheiser 3D print earbuds using Bulk Metallic Glass

Sennheiser's Metal 3D Printed Earbuds: Will 3D Printing Finally Win Over the Headphone Market? - 3DPrint.com | The Voice of 3D Printing / Additive Manufacturing

Leading headphone brand Sennheiser has announced that its latest earbuds, the IE 600, are to be made with 3D printing. This isn’t entirely surprising, given that Sennheiser’s consumer division is...

3dprint.com

 

[AndyBike]

Bulk Metallic Glass

I wonder if you could make a chisel out of that stuff