Sven Kramer about de Viking sapphire:
Kramer is experimenting. the 5K gold winner of Gangneung has decided to go skate on new skates, non less than the blue tubes of Viking.
" I've been trying all year to get the balance sorted. It does make things a bit exciting to do this in an Olympic season. I have faith in it. They are more comfortable in the corners and the corners here are tight" he is expecting an advantage in this.