Wheel size

Wheel sizes
(http://www.worldskate.org/speed/about/regulations.html) Page 44 Art.97

Flanders Grand Prix 2021:

For the miniemen/pupillen/scholieren categories the maximum wheel size is 90mm.

For the categorie Cadets the maximum wheel size is 100 mm.

For the categories Youth, Juniors and Seniors the maximum wheel size is 110mm.