Ignoring the front forks, the frame of a bicycle is essentially a quadrilateral with a diagonal strut. This is because the resulting triangles are rigid. If an n-sided polygon with rigid edges and flexible angles has enough diagonal struts to make it rigid, the smallest number of struts required is
The world record speed for bicycle riding in 2001 was held by Sam Whittingham, who rode over a distance of 200 metres at a speed of 129.6 kph. It represents the worlds fastest human propelled by his own power.
This answer is wrong.
Perhaps look at
an example or two.
Then try again.
This answer is incorrect.
Think about this problem
a bit more.
Then try again.
This is not the right answer.
Dont just guess.
Perhaps try a hexagon.
Then try again.