RockShox XC32TK Crown Adjust Solo 100mm Air Fork, Black, 29-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: 2133g, weight based on 265mm 1-1/8" steerer, 9mm QR lower leg Turnkey crown mounted lockout features a patented blow off design to take the edge off unexpected hits even when the lockout is engaged 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