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RockShox
SID SL Ultimate 2-Position Remote 29in Boost Fork - 2022

5 out of 5 stars
2 Reviews
Current price: $719.20 Original price: $899.00
20% off

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Why We Like The RockShox SID SL Ultimate 2-Position Remote 29in Boost Fork

When all that matters is getting to the finish line as quickly and efficiently as possible we ride with the RockShox SID SL Ultimate 2-Position Remote 29in Boost Fork. This ultra-light cross-country-specific fork can mount a TwistLock system that quickly locks and unlocks our suspension on race day. The ultralight package comes with 100mm of travel supported by the proven Charger Race Day damper and DebonAir air spring.


Details

  • RockShox's cross-country specific fork for performance during 90min races
  • Aluminum uppers resist flex while magnesium lowers shave weight
  • Superlight design sheds grams by only being offered in 100mm
  • Charger Race Day damper is race proven and ready for big hits
  • 32mm stanchions shed grams all while staying composed
  • 110mm boost axle spacing fits most modern mountain bike wheels
  • Item #RSXB04X
Travel
100mm
Stanchion Material
Fast Black-coated straight wall 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
Axle To Crown
506mm
Rake
44mm
Spring Type
DebonAir
Damper
Charger Race Day
Adjustability
external rebound, 2-position remote compression (Open/Lock)
Lockout
yes
Axle
15 x 110mm Boost
Brake Compatibility
post-mount disc
Rotor Compatibility
160 - 200mm
Includes
fender, grips, TwistLoc remote
Claimed Weight
3lb 2.4oz (1430g)
Manufacturer Warranty
2 years
Activity
mountain biking, cross-country

Overall Rating

5 based on 2 ratings

Review Summary

1 Stars - 0 reviews
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5 Stars - 2 reviews

Fits True To Size

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5 out of 5 stars

February 8, 2022

RockShox SID SL Ultimate

Familiarity:
I've used it once or twice and have initial impressions

Excellent Fork. I loved it.

Jose G
Competitivecyclist.com

Originally reviewed on Competitivecyclist.com

5 out of 5 stars

January 17, 2021

Heartbreaker

Familiarity:
I've put it through the wringer

I had the opportunity to swap out my Fox 34SC for the SID Ultimate for about 2 months, and about 300 miles later I can confirm that the SID Ultimate takes the title as the best fork for Down Country, or Even XC Racing if you want a little extra cushion and a stiffer feel. The fork climbs well unlocked, which is something I had to force myself to try climbing with the fork opened up, as I usually lock my fork out on the slightest climbs. I didn't really notice any bouncing when climbing which is what I find on the Fox 34. I did lockout the fork on some steeper climbs which required out of the saddle efforts, (even taking a PR on a climb in Park City, I cant 100% say it was the fork. But i like to think it was) The SID Ultimate Handles small bumps better than the Fox 34SC, The SID also comes in at a lighter weight by about 120 grams and packs a bigger punch. The fork Locks out stiff and climbs like a beast. I Rode everything from Park City Loam, to St George Rocks and Sand. To Desert Torrential downpour rain/snow. This fork performs in all conditions, and I found was able to handle lower temperatures better than my Fox 34 I have also taken some serious hits on the fork, Not once bottoming out the fork, it's very progressive in its travel, while still feeling smooth and grounded. My front wheel would hold hardpack berms, and loose washed-out corners better than the fox 34. I Plan on swapping my forks for the near and immediate future over to the SID Ultimate. I am 100% sold. ---SHORT SUMMARY-- Stiff, Fast, Light, Reliable, Fun, Confident. The photo below sums up this fork perfectly, It's a Riot.

user image
Samuel M
Competitivecyclist.com

Originally reviewed on Competitivecyclist.com