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Here we see the pedal arms and modified chain drive. The team used all of their non-paper weight in the drive system.
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In the rear sprocket assembly an inner tube rotates with the sprocket driving the rear wheels.
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Here is the rear wheel assembly. The chain and sprocket are visible.
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This is the entire back end. Note that the chain is actually inside the lower tube.
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To make the front forks less bulky two outside edges were cut away from the tube and then glued together.
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This is the finished product. Although it ran into difficulties on the track the team took first place in project presentation.
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