4x90mm (size Medium) or 3x110mm (Size Large) setups

these bearings provide an ultra smooth ride with low rolling rolling resistance

In-stock ready to ship

Footbed/outsole: rubber

Rollerblade Hydrogen Pro Firm 110mm Wheels 8-Pack - Sale Surf More XM 4x90mm (size Medium) or 3x110mmHydrogen Pro wheels are made in the USA with the highest quality materials, standards and attention to details to be used during all race conditions and leisure skates for consistent, top end performance on road, track, long distance and sprints. provides the extra speed required for athletic competitions. excellent, consistent performance, superior control in turns, great speed all track speed competitions They incorporate a multi layer technology,