The Ko Classic 3 shaft line uses an oversized steel shaft. It is composed of a miniature ball bearing (12 mm inside x 18 mm outside) and a needle bushing for greater resistance to stress.

Tension: Spring adjustable from 8 to 14.
Surface area: 400 mm.
Threading: 9/16 x 20 mm.
Angular freedom: 0, 4.5 , 9 depending on cleat type.
Pedal weight: 40 g. (348 g. the pair of cleats and screws).
Body material: Composite