Root Industries brought their wheels into the US several years back and they quickly became a top seller for several reasons. They are affordable, high quality, and look great - a total triple threat that translates to sales! That also means that Root Industries bearings are also a best seller because they are pre-installed on every Root wheel that we sell. Root bearings are moderately priced for such a high quality, buttery smooth bearing. Root Industries scooter bearings have an ABEC 11 rating. The higher the bearing rating, the more precision it has, which makes it faster and smoother. Root Industries bearings are compatible with PRO SCOOTER WHEELS of any diameter.
ABEC 11 include 4 bearings 2 spacers T are 5 ratings on the ABEC scale: 1,3,5,7,9. Higher ABEC ratings provide better precision, efficiency, and greater speed capabilities. Bearings require a bearing press for installation