ABEC-3 bearings are the most economical bearing Enduro offers, but are extremely tough and durable.
Grade 10 chromium steel balls are within 10/1,000,000″ round. These are twice as round as the industry standard. 52100 high carbon chromium alloy races go through a vacuum de-gassing process resulting in the purest chromium alloy steel, hardened to R-62. Keeping everything together are riveted steel retainers and sealed with LLB type seals.