Adaptive Ride Dynamics enables the Flight Attendant system to learn from the rider to make smarter, more personalized decisions for greater efficiency and even more speed Charger Race Day 2 Flight Attendant electronic damper features an automatic three position compression adjustment (Open/Pedal/Lock) positions with independent adjustable rebound 35mm chassis is the perfect blend of light weight and rigidity for the modern XC bike DebonAir+ provides more smallbump sensitivity and tunable mid-stroke support 160mm minimum/200mm maximum rotor size, 66mm maximum tire width