ROCKSHOX

ROCKSHOX SID ULTIMATE RACE DAY2 3P USB-C D2 FLIGHT ATTENDANT 29" Fork, 15x110 mm Boost Axle, Red

Manufacturer reference: 00.4021.283.002
Climb mountains, fly down descents: the ROCKSHOX SID Ultimate Flight Attendant fork is designed to push the limits of cross-country riding. Its stiff 35... Read more

Recommended price* : 1.599,00 €

Regular price 1.399,90 €
Regular price Sale price 1.399,90 €
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Description

Climb mountains, fly down descents: the ROCKSHOX SID Ultimate Flight Attendant fork is designed to push the limits of cross-country riding. Its stiff 35 mm chassis provides unwavering stability even at high speeds, while its 120 mm of travel gives you the room you need to tackle technical terrain.

Equipped with the electronic Flight Attendant system, this smart fork anticipates your needs using sensors that analyse the terrain and your effort. The Charger Race Day 2 damper automatically adjusts compression between three modes (Open, Pedal, Lock), delivering pedalling efficiency and comfort without compromise.

Flight Attendant features a tool that lets the algorithm learn how you ride and continually tailor your suspension: Adaptive Ride Dynamics. The algorithm gathers fresh data to accurately calculate your personalised effort zones throughout the season. Bias Adjust technology lets you fine-tune how Flight Attendant responds to your riding style in automatic mode.

The SID Ultimate also stands out for its DebonAir+ air spring, optimised for small-bump sensitivity and consistent mid-stroke support. Maxima Plush oil reduces friction for lasting performance, even on the most demanding rides.

Finally, its compatibility with the SRAM AXS ecosystem and lightweight design make this fork a showcase of technology and performance. Get ready to reach new heights.

Ref: 16131855450492

Key features

Automatic suspension: Flight Attendant selects the Open / Pedal / Lock setting in real time.

Intelligent learning: Adaptive Ride Dynamics tailors its decisions to your riding style.

35 mm SID chassis: Stiffness and precision, with a lightweight machined crown.

Sensitivity and support: High-volume DebonAir+ air spring.

Signature colour: Electric Red finish.

Technical information

Use: XC racing
T: Single
Wheel size: 29"
Front wheel axle: 15x110 mm (Boost)
Lockout: On the fork
Colour: Red
Travel: 120 mm
Adjustable travel: No
Offset: 44 mm
Maximum disc diameter: 220 mm
Minimum disc diameter: 180 mm
Steerer diameter: Tapered 1.5"–1 1/8"
Stanchion diameter: 35 mm
Brake mount: Post Mount
Fork height: 531 mm
Steerer length: 265 mm (can be cut down)
Steerer material: Aluminium
Stanchions: Aluminium with black Fast Black finish
Machined aluminium crown
Lowers: Magnesium
Adjustable air volume: Yes
Tokens installed/possible: 0/3

DebonAir+ air spring
Race Day 2 3P Flight Attendant damping (Open/Pedal/Lock)
Air volume adjustment with Bottomless Tokens
Maxle Stealth axle
Maxima Plush oil

Automatic compression adjustment: Open/Pedal/Firm
Automatic rebound adjustment: Yes, E-Cont
Preload adjustment: Yes
Spring: Air (maximum pressure 150 psi)

Tyre compatibility: Up to 2.3" wide on 29" wheels without a mudguard
Not compatible with electric mountain bikes
Compatible with a short mudguard (RockShox mudguard included).

Maximum recommended weight (bike + rider): 150 kg
Compatible only with the Flight Attendant ecosystem: fork, rear shock, AXS drivetrain and crankset power meter.
USB-C connection (cable not included)

Weight (manufacturer): 1,624 g at 120 mm travel
Model: FS-SID-UFA-D2.

Price information

*Recommended retail price from supplier in September 2026