All four wheels are the same size. Confirmed by Flying Eagle: the Vireo is a flat setup, with no rocker or anti-rocker. With the skate off the ground, the two middle wheels can look slightly smaller or sit a touch higher than the outer pair. That is normal tolerance in the frame and wheels. With the skater standing on it, all four wheels are in contact.

Adjusting the size

1. Unscrew the soulframe screw between wheels 1 and 2 with the Torx tool in the box. On size S (EU 30–34), take the second wheel off first to reach it.
2. Press the heel button and slide the toecap out or in to the size you want until it clicks.
3. Wiggle the toecap side to side and front to back to check it has locked.
4. Make sure the aluminium plate inside the toecap sits straight in its recess, hold it there while you tighten the screw, then refit the second wheel on size S.

Liner break-in

Only the hard shell extends when you move the skate up a size. The liner has no adjuster of its own. Its front section is Lycra, the same stretch fabric used in sportswear, and it stretches to fill the longer shell after a few skating sessions, so a snug or slightly tight feel right after adjusting is normal and eases with use.

Let the skater use the skates for a few sessions before judging the fit.