RockShox SID SL Ultimate Flight Attendant Race Day XC Fork with Electronic Suspension

The RockShox SID SL Ultimate Flight Attendant Race Day fork is engineered for the serious cross-country racer who demands the perfect balance of lightweight performance and intelligent suspension technology. Designed to shave precious grams without compromising durability, this fork incorporates the revolutionary Flight Attendant system, which automatically adjusts suspension settings in real-time to optimize every pedal stroke. Whether you're powering through rugged trails or attacking technical climbs, this fork delivers an unmatched level of control and efficiency tailored precisely to your riding style.

Built around the new DebonAir+ air spring, the SID SL Ultimate offers lower friction and increased bushing overlap, ensuring smoother travel and enhanced responsiveness. Its 32mm straight wall aluminium chassis provides a sturdy yet lightweight structure, while the machined anodised crown adds a sleek, polished finish that stands out at the start line. Available in striking Electric Red or Gloss Black, and with travel options ranging from 80mm to 110mm, this fork is versatile enough to suit a wide range of XC race conditions.

Equipped with the Charger Race Day 2 Flight Attendant electronic damper featuring Open, Pedal, and Lock modes, the fork adapts seamlessly to varying terrain and rider input. The Fork-Only algorithm update further enhances compatibility with hardtail bikes, making it an ideal upgrade for riders seeking cutting-edge suspension technology. With room for bigger tyres and a 15x110mm BOOST™ axle, the SID SL Ultimate combines innovation and precision engineering to elevate your racing experience.

What It’s Good For

• Maximizing efficiency and control through real-time suspension adjustment with Flight Attendant technology
• Reducing weight on XC race bikes without sacrificing durability or performance
• Handling varied terrain with customizable travel options from 80mm to 110mm
• Enhancing responsiveness and smoothness thanks to the advanced DebonAir+ air spring
• Providing a sleek, professional look with a machined anodised crown and bold colour options
• Improving compatibility with hardtail bikes through a dedicated Fork-Only algorithm update
• Fitting larger tyres and BOOST™ axle standards for modern XC setups

What It’s NOT Good For

• Downhill riding or aggressive enduro use due to its XC race-oriented design and travel limits
• Riders looking for a coil spring fork instead of air suspension technology
• Casual or recreational mountain biking where advanced suspension tuning may be unnecessary
• Bikes incompatible with 29" wheel size or BOOST™ axle standards
• Those seeking a more budget-friendly suspension fork without electronic features

Frequently Asked Questions

What is the Flight Attendant system and how does it work?
The Flight Attendant system is an intelligent electronic suspension technology that automatically adjusts the fork’s damping settings in real-time. It senses the terrain and rider input to optimize suspension performance, improving efficiency and control during rides.

Can this fork be used on a hardtail bike?
Yes, the SID SL Ultimate features a Fork-Only algorithm update designed specifically to enhance the Flight Attendant system’s performance on hardtail mountain bikes.

What travel options are available for this fork?
The fork comes with travel options of 80mm, 100mm, and 110mm, allowing riders to select the ideal setup for their specific cross-country racing needs.

Is this fork compatible with all wheel sizes?
No, the SID SL Ultimate is designed for 29" wheels only, ensuring optimized geometry and performance for that specific wheel size.

What colours does the RockShox SID SL Ultimate come in?
It is available in Electric Red - Gloss and Gloss Black, both offering a polished and race-ready appearance.