The RockShox SID Ultimate Race Day 29 3P Flight Attendant is a top-tier cross-country suspension fork designed for riders who demand maximum efficiency, control, and speed. Built around 29-inch wheels and optimized for modern XC race bikes, it combines a lightweight chassis with advanced damping technology to deliver precise tracking and confident handling on technical courses. The SID platform is known for its stiff yet responsive feel, helping you hold your line through rock gardens, roots, and high-speed corners while keeping weight to a minimum for fast climbing and acceleration.
This Ultimate version features RockShox’s premium Race Day damper and the innovative Flight Attendant electronic suspension system, which can automatically adjust settings based on terrain and rider input. With 3-position (3P) modes, you can quickly switch between firm, pedal, and open support, or let the system do the thinking for you. The result is a fork that stays efficient on the climbs, supportive on rolling terrain, and plush when the trail gets rough. Whether you’re chasing podiums or simply want cutting-edge performance on your XC bike, this fork delivers a race-ready blend of comfort, control, and speed.