ROCKSHOX

ROCKSHOX SID SL ULTIMATE RACE DAY 3P FLIGHT ATTENDANT USB-C D2 29" Fork, Tapered Steerer, 15x110mm Boost Axle, Black

Manufacturer reference: 00.4021.285.001
The ROCKSHOX SID SL Ultimate Flight Attendant is the fork of choice for cross-country purists seeking maximum performance. With its ultra-light 32 mm chassis... Read more
Regular price 1.199,90 €
Regular price Sale price 1.199,90 €
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Description

The ROCKSHOX SID SL Ultimate Flight Attendant is the fork of choice for cross-country purists seeking maximum performance. With its ultra-light 32 mm chassis and 100 or 110 mm of travel, it delivers exceptional efficiency on the fastest, most technical courses. Its clean design and premium finish underline its bold, race-ready character.

The Flight Attendant system transforms the riding experience. Using a series of smart sensors and an advanced algorithm, it automatically switches the suspension between three settings — Open, Pedal and Lock — according to your effort and the terrain. There’s no need to think about it: the fork anticipates your needs for optimal efficiency at every moment.

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.

With the electronic Charger Race Day 2 damper and SRAM AXS wireless technology, the SID SL Ultimate fits seamlessly into a connected ecosystem. Independent rebound adjustment, Adaptive Ride Dynamics and IPX7 water resistance complete this technology-packed fork.

Finally, its XC-optimised DebonAir air spring provides more support, responsiveness and confidence when racing. Ready for the podium, this fork is designed for the most demanding racers.

Ref: 16131857285500

Key features

The lightest: RockShox’s lightest XC fork, with a 32 mm chassis.

Automatic suspension: Flight Attendant adjusts the Open / Pedal / Lock settings in real time.

Hardtail-compatible: Fork-only mode and customisable automatic mode.

Reduced friction: Increased bushing overlap and DebonAir+ spring.

Premium finish: Machined and anodised crown.

Technical information

Travel: 100 or 110 mm
Adjustable travel: No
Offset: 44 mm
Maximum brake rotor diameter: 200 mm
Minimum brake rotor diameter: 160 mm
Steerer diameter: Tapered 1.5"–1⅛"
Stanchion diameter: 32 mm
Brake mount: Post Mount
Fork height: 516 mm (100 mm travel)
Steerer length: 265 mm (can be cut down)
Steerer material: Aluminium
Stanchions: Aluminium with black Fast Black finish
Crown: Hollow forged aluminium
Lowers: Magnesium
Adjustable air volume: Yes
Tokens installed/maximum: 0/3

DebonAir air spring
Race Day 2 3P Flight Attendant damper (open/pedal/lock)
Bottomless Tokens air volume adjustment
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 2.4" wide on 29" wheels without a mudguard
Not compatible with e-MTBs
Compatible with a short mudguard (RockShox mudguard included).
USB-C connection (cable not included)

Maximum recommended weight (bike + rider): 150 kg

Compatible only with the Flight Attendant ecosystem: fork, rear shock, AXS drivetrain and crankset power meter.

Weight (manufacturer): 1,480 g at 110 mm travel
Model: FS-SIDS-UFA-E2

Price information

*Recommended retail price from supplier in September 2026