I am of the opinion that gears are just extra hassle if riding electric. Get rid of them and simplify the bicycle. Here's my design with a friend on it. The design of this electric fixie can be read here: http://www.solarbike.com.au/fixi story.php
and a review of it here: http://www.solarbike.com.au/testimonials.php
The gearing I find works really well with a direct drive 350W motor and a 9Ah 36V water tube style lithium ion battery. I can get a range of nearly 40km with easy going pedalling on it.
Matt - Solar Bike - www.solarbike.com.au
and a review of it here: http://www.solarbike.com.au/testimonials.php
The gearing I find works really well with a direct drive 350W motor and a 9Ah 36V water tube style lithium ion battery. I can get a range of nearly 40km with easy going pedalling on it.
Matt - Solar Bike - www.solarbike.com.au