RockShox Reba RL Solo Air 100mm, 9mm QR, 1-1/8 Inch,  29 Inch, Crown Adjust 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: 1584g Motion Control will chew up climbs with incredible efficiency while the lockout blowoff valve and threshold control immediately absorb any bumps 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.