Realizing that a floating chain tensioner is going to become unpredictable at higher speeds I opted to redesign the way the motor transfers motion to the rear wheel. I learned the hard way that the chain driving the rear wheel absolutely has to sit in front of the pivot point of the rear forks, otherwise the chain just becomes loose as the bike moves up and down. Here I have the motor mount V2, which has a chain running from the motor to a shaft which has its own chain running to the rear wheel. This was a dramatic improvement over the last design, but it introduced a new problem of how to tension the chain between the motor and shaft. It was also terribly noisy. Here I also finalized the placement of the motor controller and tested out the design of the battery pack support. I was happily surprised at how well the wooden test pieces held up under load. It gave me hope for when I finally have everything mounted with metal.
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