Formula Four Lock In 55mm Wheels
By Spitfire
Size - 55mm
Width - 39.2
Riding Surface - 26.8
Hardness - 99du
Shape - Lock In Full
Set of 4 wheels in lock in full shape (a slightly wider version of the lock-in shape)
Asymmetrical design with conical cut outside for less weight
Straight edge lock-in inside for control
Unmatched abrasion resistance, which equals fewer flat spots
Smooth anti-stick slide
Lasting speed