Don't be fooled by the title, Enduro have been producing bearings since before the word "Enduro" became fashionable, there bearings are an industry leading design and they set the standard for all other bearing manufacturers to match. You may be more familiar with the ABEC standards from the worlds of skateboarding and roller blades but Enduro  have tailored their bearings for the specific demands of cycling. The entry level industry standard of a bearing is ABEC 1 but Enduro do not produce any bearing which comes in at less than ABEC 3, this means that even if you choose an entry level Enduro bearing it is of better quality than another manufacturers entry level bearing.Enduro were the first company to produce a truly sealed full ceramic bearing and this selection for your bike will make it run like a dream.NB: Sold Individually, not as a pair