Sigmaracing assigned us to design in collaboration with their R&D department,
a gravel tyre for r/c model racing.

"Edge" is the name of the new tire of the Greek Sigma Racing Tires.
It is a tire suitable for all kinds of tracks, with increased forward traction arising
from the medium set of pins. The side double step pins maximize side traction
while the inferior pins are cut to avoid traction roll. *