Free 2-Day Shipping on Orders Over $50
1-888-276-7130
Labor Day Sale -- Save 20% Or More
  • RockShox SID Ultimate 29in Boost Fork
  • RockShox SID Ultimate 29in Boost Fork
  • RockShox SID Ultimate 29in Boost Fork Detail
  • RockShox SID Ultimate 29in Boost Fork Detail
  • RockShox SID Ultimate 29in Boost Fork Detail
  • RockShox SID Ultimate 29in Boost Fork Detail
  • OptionsRockShox -
  • RockShox -
  • Detail Images - Detail
  •  - Detail
  •  - Detail
  •  - Detail
RockShoxSID Ultimate 29in Boost Fork
$779.00

Item # RSX009Q

Select options
  • Cancel
  • Select options
  • Gloss Blue, 100mm, 51mm offset ($779.00)
  • Gloss Blue, 100mm, 42mm offset ($779.00)
  • Gloss Black, 100mm, 51mm offset ($779.00)
  • Gloss Black, 100mm, 42mm offset ($779.00)
  • Gloss Black, 120mm, 51mm offset ($779.00)
  • 100% Guaranteed Returns
  • Free 2-Day Shipping
    on orders over $50

Item # RSX009Q
Description

SID Ultimate 29in Boost Fork

For some riders, racing is a twice- a-year hobby, but for others, it's their life's true calling. RockShox builds the SID Ultimate 29in Boost Fork for the latter of the two, packing in the feel that elite cross-country racers crave, like gram savings, lively and supple suspension from the DebonAir spring, and Charger 2 RC2 damper, ramped up even further with new fluid and grease to keep things moving smoothly, whether you're hamming out short track sprints, or pushing to see how far you can go in the 24-hours in Old Pueblo. And in case you were getting jealous of the new colorways spotted in the Lyrik and Pike, RockShox ups the style points in the new SID Ultimate, with a signature Blue color that looks bold and fast when you're mashing down flowy ribbons of desert singletrack.

The SID Ultimate comes in as just about top-tier in RockShox cross country lineup (second only to the SID Ultimate Carbon), and the updates start with the newly engineered Maxima Plush oil that reduces friction and improves smoothness in the stroke over previously used oils. This translates to improved lubrication on the seals that are all new themselves, moving to a lower-friction design that's inspired the the Motocross industry. This new oil partners up with a new type of grease in the air chamber that's designed for longer lifetime, and better wear than the grease tossed in in years past.

The SID continues to use the Charge 2 damper we saw last year. While the other forks in RockShox's lineup see a change to the new Charger 2.1, RockShox engineers determined that the traditional Charger 2 performs better than the new damper in cross-country applications. This means a firmer climb, and lockout setting, for powering up punchy steep sections without losing a watt of power you're putting down. It still uses the highly-tunable DebonAir spring for consistent feel throughout the travel, and compression adjust.

  • RockShox's SID soars to the front of the XC scene
  • New Maxima Plush oil reduces friction, silences damper noise
  • All-new seals improve smoothness, aim to eliminate friction
  • Air chamber uses new grease that's just as smooth, lasts longer
  • Charger 2 damper excells in cross-country applications
  • Highly-tunable DebonAir spring for consistent feel through travel
  • Available in the new SID Blue for a flashy upgrade to your ride
  • 100-and-120mm options with 51-or-42mm offset to compliment your bike's geometry
Tech Specs
Tech Specs
Travel
100mm, 120mm
Stanchion Material
Fast Black-coated aluminum
Lower Material
magnesium
Crown Material
forged, hollow 7050 aluminum
Wheel Size
29in
Steer Tube Diameter
1-1/8 - 1-1/2in tapered
Stanchion Diameter
32mm
Rake
42mm, 51mm
Spring Type
DebonAir
Damper
Charger 2 RC2
Adjustability
high-speed compression, low-speed compression, rebound
Axle
15 x 110mm Boost
Brake Compatibility
post-mount disc
Recommended Use
cross-country
Manufacturer Warranty
2 years

Reviews & Community

REVIEWS

Write a review

    Add a:
  • Photos
  • Videos

No file chosen

Rather attach a photo from your computer?

Familiarity:

Only jpg, jpeg, png, gif or bmp files please.

Submit ReviewCancel