It didn't require much knowledge for assembly, but the Joule III came without a dynamo kit and a light.
Josh had quickly followed-up by sending a dynamo LED headlamp and a Biologic dynamo kit.
When I fitted the Joule III, the wiring was split to power up the headlamp which worked very well and the dynamo kit (with power spike protection).
The only problem I had was attaching the coupler to the dynamo.
I found out that the screws on my fender were too long and was getting in the way.
This was solved by loosening the nut which allows the coupling to fit snugly on the dynamo's power connector.
On-going evaluation
I've cycled the Joule III for 1,000km.
So far so good.
There's hardly any resistance and for devices, it needs a constant speed of 9km/h to power up.
On my Garmin EDGE800 GPS, the power from the Joule III hub came as an auxiliary source to keep the device going.
Even in rainy and wet conditions, the dynamo hub had no issues.
The only thing that I need to keep a lookout for, is the power coupling. I need to check this for corrosion from use in our hot and humid weather.
Eurobike 2012
Biologic will announce the Joule III today in Germany as a new product in their accessory line-up.
I think the new hub will also be introduced on Tern Bicycle's 2013 premium models.
That said, I can anticipate high-quality bikes like the Tern Eclipse S11i as well as other high-end touring and city bikes fitted with this awesome power source..
LEFT: The writer's bike, rigged for touring with the biologic Joule 3 dynamo hub.
BOTTOM LEFT: A dynamo-powered LED headlight rigged onto the front mount of the writer's Dahon Speed P8.
BOTTOM RIGHT: An auxiliary power cable linked directly from the joule dynamo for small electronic devices.