RockShox SID XX Tapered Steerer loc Remote Right Solo 100mm Air Fork, Black, 27.5-Inch With Solo Air you add air to your forks through a single Schrader valve, filling both the positive and negative air spring chambers simultaneously Weight: 26" 80/100mm: 1400g, 26" 120mm: 1420g, 29": 1633g, based on 265mm tapered steerer with XLoc Remote and MMX shifter mount, 9mm QR lower leg Motion Control DNA damping mechanism is lighter than its predecessors while still offering smoother, more consistent damping performance Features printed Air Guides on fork legs Maybe not a technological feat, but it will help you set up your suspension in seconds instead of minutes