Sprint canoe training machine - GIF

Sprint canoe training machine.

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Previously:

Making a canoe - GIF
Pedal to paddle propulsion canoe - GIF
Truck crosses river on two canoes

After a few years that guy is going to have Calluses on his but the insides of his knees Hip and shoulder problems and a worn-out spine.

Yup! When you are 20 you are invincible!!