CNC-machined front one-way axle for #345001 Front One-Way, machined from Swiss 7075 T6, hardcoated for long life. Includes factory-pressed high-quality German one-way bearings, hand-ground for maximum running precision and strength. The one-way bearings must be serviced, cleaned, and oiled regularly (we recommend using #106231 HUDY One-way Lube). One-way bearings are not replaceable.