RockShox SIDLuxe Ultimate Flight Attendant Rear Shock - 190 x 45mm SoloAir Reb57/Comp27 Standard Salsa Spearfish C (2025+) A2. The path to the podium has never been clearer. SIDLuxe Ultimate Flight Attendant completes one of the fastest most efficient and most technologically-advanced crosscountry platform ever. Efficiency is key with the latest Flight Attendant automatic damper featuring three Compression positions: Open Pedal and Lock positions. Flight Attendant’s fine-tuned algorithm intuitively understands everything on course. Focused on maximizing efficiency and maintaining speed the new SIDLuxe Ultimate Flight Attendant is a shock built to dominate the track.