Skip to product information
1 of 1
ROCKSHOX

ROCKSHOX SID SL DebonAir 29" Crown/Steerer/Upper Tube Assembly, Tapered Steerer, 44 mm Offset, Black Anodised, D1 (2024+) #11.4018.090.088

Manufacturer’s ref.: 11.4018.090.088
The ROCKSHOX SID SL Ultimate DebonAir 29" Boost crown/steerer/upper tube assembly (CSU) is a genuine spare part comprising the fork crown, steerer and upper... Read more

Recommended price* : 370,00 €

Regular price 299,90 €
Regular price Sale price 299,90 €
View full details

Highlights

  • Genuine RockShox crown, steerer and upper tube assembly.
  • Compatible with SID SL Ultimate D1 (2024–2026).
  • 29" Boost wheels, 44 mm offset.
  • Tapered aluminium steerer.
  • Compatible with the DebonAir air spring.
  • Black anodised finish.

Description

The ROCKSHOX SID SL Ultimate DebonAir 29" Boost crown/steerer/upper tube assembly (CSU) is a genuine spare part comprising the fork crown, steerer and upper tubes. It can be used to repair a RockShox SID fork with a damaged steerer or upper tubes, or to change the offset, in a workshop or by an experienced mechanic.

According to the RockShox spare parts catalogue, this version is designed for 29" Boost wheels, with a 44 mm offset and a tapered aluminium steerer. It is paired with the DebonAir air spring and has a black anodised finish.

It is listed for SID SL Ultimate D1 (2024–2026) forks with 100–110 mm of travel. Check the fork’s model code to confirm its model, generation and model year before ordering.

Technical information

USE
Type: fork crown, steerer and stanchion assembly (CSU);
Discipline: mountain biking;

COMPATIBILITY
Forks: SID SL Ultimate D1 (2024-2026);
Spring: DebonAir;
Travel: 100 to 110 mm;

DIMENSIONS
Wheel size: 29" Boost;
Offset: 44 mm;
Steerer: tapered aluminium;

FINISH
Colour: anodised black;

REFERENCES
Weight (manufacturer): not specified;
Part number: 11.4018.090.088;
EAN: 710845897320.

Pricing information

*Supplier recommended retail price in October 2026