George's Electric Bicycle

So, having built my own ebike based on parts from Oatley Electronics I have learned a lot about ebikes in general. When I saw a new hub-motor kit on TradeMe I thought it would be quicker and easier to fit to George's bike, and ought to be just as good (if the specifications were genuine, oh, and if it actually worked.)

7 January 2007
I spotted the kit on TradeMe, and it was priced about the same as the parts I had already purchased for my bike. The specifications looked similar to mine in terms of power output and range, so I ordered one.

11 January 2007
A big box arrived by courier from the North Island.

13 January 2007
The weekend! Well, to cut a short story even shorter, it took just over two hours to fit.

Of course, we had to fiddle with it a bit, but it was about as simple as it looks here. Not shown is the procedure for attaching the pedal sensor, but it is not necessary to fit it to make the bike go.

Specifications
Here are a few key points:

Batteries: 2x 12V 18Ah sealed lead acid
Motor: 24V 250W hub motor pre-installed in 26" wheel
Controller: Brushless motor controller with handlebar throttle, brake switches and pedal speed sensor
Top speed: Approximately 30km/h
Range: Approximately 30km on a full charge

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