first gear drive flange CNC-machined from tough Swiss 7075 T6 aluminum Includes factory-pressed (non-replaceable) top-quality German one-way bearing, hand-ground for maximum operating precision and strength. The one-way bearing must be regularly serviced, cleaned, and oiled (we recommend utilizing # 106231 HUDY One-way Lube). Designed to be properly used with brand new little 2 rate.