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SID is built with a stiff, lightweight 35mm chassis and uses the Rush damper that offers a firm lockout and easy to adjust rebound. Proven-ready for a new generation of more capable XC bikes.

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  • Proven 35mm chassis is a perfect blend of light weight and stiffness for the modern XC bike
  • New Rush damper provides Open or Lockout positions with factory-tuned compression and independent rebound
  • DebonAir™ air spring tuned to meet the demands of XC and maintains a higher ride height for increased confidence and control
  • Ultra-low friction SKF wiper seals provide long lasting fork performance and improve overall suspension feel
  • New short fender compatibility. RockShox premium fender sold separately
  • Maxima Plush damping fluid reduces friction and silences damper noise
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Some variations of this product featured on this page are not available for purchase and are installed on bicycles as complete bikes only. See your dealer for details.



Wheel size 29"
Travel (mm) 110mm, 120mm
Steerer 1.5" Tapered
Axle 15x110mm BOOST™
Spring DebonAir
Fork offset 44mm (29")
Maximum Rotor Size 220mm
Upper tube type 35mm tapered aluminum
Max Tire Width (mm) 66
Minimum Rotor Size 180mm
E-Bike Approved E-bike Approved
Damper Type Rush RL
Volume reducer 0/3 Tokens, 1/3 Tokens
Color (FS) Diffusion Black, Gloss Black
Fender Compatibility Short, 2 point mount
Weight (g) 1696
Weight Based On 120mm travel W/Maxle Stealth


Installation. Service. Compatibility. Find all the documentation needed to set up, use, and maintain your components in the SRAM Service hub.

Visit product service page

Trailhead App

suspension set up starts here

It’s like having a personal tuner in your pocket. RockShox TrailHead App is the starting point to get your suspension dialed in for the perfect ride. Tuning recomendations, upgrade information, and service support all in your hand.

rockshox trailhead