Telephone Biking (If I Dare)

[eHomer]

Is it not driving the crank then?

No, the motor assembly is much simpler than that, and is therefore easy to fit to almost any bike.

Here's a close up of that bike's crank from the left side, the roller can just be seen touching back wheel behind the flywheel housing.

The right hand photo shows the updated Bernardi design of the same engine, from the right hand side, which shows the roller much more clearly. I owned this one for a couple of years, but sold it after buying the Dutch Spartamet because that was much quieter to ride, and with no roller slippage or wear on the tyre.

 

[Aushiker]

I had a look at this but I think it needs a subscription to be able to use it. I had to get rid of all my subscription stuff when I was made redundant....

You can use it for free. You do have to sign-up but. You can see what you can do at http://ridewithgps.com/help/category/features/basic-features/ for free. I did everything I do know when I free membership.

Andrew

 

[Willber G]

Is it not driving the crank then?

It certainly doesn't seem to be driving either of the hubs...

 

[Alan Quay]

It certainly doesn't seem to be driving either of the hubs...

See ehomers knowledgeable response above. It's a friction drive to the back wheel.

 

[Willber G]

See ehomers knowledgeable response above. It's a friction drive to the back wheel.

Ah, thanks, I didn't notice the extra page.