The Marzocchi Z2 29in Rail Air Fork is a favorite for its simple and reliable trial performance. The RAIL damper features a slide compression switch for easy adjustments while riding, and a simple rebound adjustment. The Z2 is available in 120, 130, or 140mm of travel to fit our cross-country or trail bikes and has a quick-release Boost thru axle and 34mm aluminum stanchions for trail capability and stiffness.