RockShox Reba RL - Solo Air 100 mm, (9 - mm QR, (1-1/8, 29 - Inch), Crown Adjust, Black) Motion Control allows fork to chew up climbs with incredible efficiency while the patented lockout blowoff valve and threshold control immediately absorb any bumps along the way 100mm of Solo Air travel uses a single Schrader air valve to simultaneously fill both positive and negative air chambers, simplifying suspension setup and retaining the lightweight and plush ride of Dual Air 1-1/8" aluminum steerer tube for lighter weight Magnesium lowers with post mounts for disc brakes 1584g