initial 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 optimum operating accuracy and energy. The one-way bearing must be frequently serviced, washed, and oiled (we suggest utilizing # 106231 HUDY One-way Lube). Built to be utilized with new small 2 price.