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ROCK SHOX Suspension Fork 29" SID SL Ultimate Race Day SA DebonAir 100 mm BOOST 44 mm Offset tapered blue | 2021

Item number:
Product weight:
1326 g

697,50 €
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MSRP: 869,00 €
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Product details


ROCK SHOX suspension fork 29 "SID SL Ultimate SA DebonAir 100 mm BOOST 44 mm offset tapered blue | 2021

If you are looking for minimum weight with maximum performance, RockShox has an interesting new fork for you in the program.
The SID SL Ultimate has been completely revised and now has a new, light and stiff 32 mm chassis, a redesigned fork crown and the new Charger Race Day damper with the Maxima Plush Damping Fluid, which not only improves function but also noise Your fork reduced. The DebonAir air spring has been tailored to the special requirements of the XC / Marathon to ensure a safe driving experience in every situation.
The new, optimized SKF wiper seals reduce friction and thus improve the response behavior and the lifespan of your new SID.

The new SID is lighter, stiffer and more powerful than ever and gets you to your destination faster.


The negative and positive air chambers are only filled with one valve at a time. Which significantly simplifies the setting of the personal set-up.

It's ok to be soft. DebonAir technology has an extremely low breakaway torque in order to work as sensitively as possible right from the start. The first third of the spring travel is designed to be particularly soft so that the rest can then be used as linearly as possible and swallow small blows perfectly even in the middle travel range. A late onset end progression reliably prevents breakdowns. All of this together creates more traction and perfect control.

Charger Race Day
The further development of the acclaimed Charger damper - the most advanced RockShox technology to date - raises its performance and sophistication to a completely new level of performance. The rebound is individually adjustable and the fork can be locked with the compression. The Charger Race Day is the lightest damping cartridge ever built by RockShox.

Bottomless tokens
Allows individual adjustment of the air chamber size. This allows you to perfectly match the spring characteristic of your fork to your driving style.

Maxle stealth

Very light thru axle which can be mounted and removed with a 6 mm hexagon socket. In addition to a clean look, it also saves some weight on the unsprung mass.

An axle type with 110 mm width and 15 mm thru axle. The 10 mm wider hub body allows flatter spoke angles and thus enables a more stable and stiffer wheel.

Torque caps
In order to improve the rigidity and the steering precision of the overall system, the dropouts have been enlarged for the use of end caps with a diameter of 31 mm. Use with normal end caps is no problem.

Technical specifications:

intended use : cross country, marathon
E-bike ready: no
Wheel size: 29 "
Fork crown / shaft material: aluminum / aluminum
Stanchions Material: aluminum, 32 mm straight wall, black anodized (Fast Black)
Immersion tube material: Magnesium
axle type : 15 x 110 mm BOOST floating axle (Maxle Stealth incl.)
Steerer: tapered 1.5 "to 1 1/8" (28.6 mm to 40 mm), approx. 230 mm in length (uncut)
Travel: 100 mm
Spring system: SoloAir, setting the spring hardness via two air chambers which are filled via a car valve
Adjustment of the spring characteristic: yes, via bottomless tokens (max. 3 permitted)
Damping: Charger Race Day, externally adjustable rebound, low-speed compression with 2 positions (open / lock)
Lockout: crown
Installation height: 506 mm
Brake mount: Postmount (160 mm)
Max. permissible brake disc size: 200 mm
Tire diameter max .: 751 mm
Tire width max .: 60 mm
Offset: 44 mm
Color: glossy blue (casting), black anodized standpipes (fast black)

Weight according to the manufacturer: 1326g (including thru axle)
Weight weighed: 1315g (including thru axle)

Scope of delivery:
1x ROCK SHOX suspension fork 29 "SID SL Ultimate SA DebonAir 100 mm BOOST 44 mm offset tapered blue | 2021
1x Maxle Stealth thru axle
1x Star Nut Ahead Claw
1x fender