New: antsmile

antsmile (27)in dtube • 6 years ago
BYGEN chainless bike 1
Each pink pedal is attached to pink triangle-shaped conrod of a parallelogram mechanism of three cranks (in orange and violet). Violet shaft is fixed to the violet crank. The shaft rotates on two…
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antsmile (27)in antsmile • 6 years ago
hello steemit i am new user
B
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BYGEN chainless bike 1