> The tubes of a traditional bike essentially form two diamond shapes.
Huh? I only see one diamond shape. There are two triangle shapes; one from the steering column to the seat post, and one from the seat post to the rear-wheel axle. They make up one diamond, not two.
Huh? I only see one diamond shape. There are two triangle shapes; one from the steering column to the seat post, and one from the seat post to the rear-wheel axle. They make up one diamond, not two.
What am I missing?