Material: aluminum alloys and special steel Primary spring: 125 mm Evoluzione diaphragm spring code 0S1125 Secondary spring: 85 mm Evoluzione spring code 0S2085 Basket: original Yamaha (not included) Features: slipper system - device to control the opening Compatible disc pack: original Yamaha (not included) Tools: pressure plate mounting tool code UTL-0030 (recommended) Note: when choosing the primary spring keep in mind that the greater the spring tension, the greater the pressure on the disc pack and the smaller the slipping in acceleration. When choosing the secondary spring remember that the greater the spring tension, the greater the engine brake in deceleration
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