SID RL 15x100

A dedicated, 100 millimeter travel-specific chassis, damper and air spring, precise steering characteristics, and an unmistakable every-gram-counts attitude — each element of SID’s design is focused on winning. The RL model brings Charger 2 damper performance for an unbelievable value. 

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Some variations of this product featured on this page are not available for purchase and are installed on bicycles as original equipment only. See your dealer for details.

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27.5" | 29"
SID RL 15x100


Specifications for SID RL 15x100

Wheels27.5", 29"
DampingCharger 2 damper
Available SpringsSolo Air
AdjustmentsExternal rebound, 2-position compression (open/lock)
Steerer OptionsTapered
CrownForged, hollow aluminum
Upper TubesFast Black 32mm straight wall aluminum
OptionsOneLoc remote
Recommended Rear ShockDeluxe RL, Deluxe RT, Monarch RL, Monarch RT
Maximum Rotor Size203mm
Color OptionsDiffusion Black, Gloss Black, Gloss White
Retail AvailabilityJanuary 2017


Air Guides™

We print Air Guides on all of our air-sprung forks. Maybe not a technological feat, but it will help you set up your suspension in seconds instead of minutes. And more time on your bike equals more chances to earn King of the Mountain on your favorite trail. Maybe they are a technological feat.

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With revolutionary advancements in bicycle componentry, like SRAM’s XX1, X01 and X1 drivetrains, mountain bike designers have been given almost limitless freedom to focus solely on the performance of the bike. Each advancement demands that the entire package works flawlessly. Aggressive trail and enduro riders have been increasingly enjoying the benefits of larger wheels, but many still view 27.5" and 29" wheels as a possible weak link. Which is why SRAM has developed an open standard with Boost compatible components for SRAM drivetrain, hubs and RockShox forks.

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Bottomless Tokens

Bottomless Tokens allow riders to easily custom tune their RockShox fork’s air-spring performance to best match their own riding style and suspension preference. Adding the easy-to-install Bottomless Tokens changes the air-spring curve to resist bottom-out after a big hit, giving aggressive riders the power to attack the trail harder. Removing Bottomless Tokens makes the air-spring curve more linear, enhancing suspension feel for certain types of terrain or trail condition and ensuring riders who are less front-end aggressive benefit from 100 percent of their fork’s travel.

  • Black bottomless tokens are compatible with the following Solo Air forks: RS-1 SID, Reba, Bluto, Revelation.
  • Grey bottomless tokens are compatible with the following Solo Air forks: Pike, Lyrik, Yari, Pike DJ, BoXXer.
  • Dark red bottomless tokens are compatible with the following Dual Position Air forks: Pike, Lyrik, Yari.

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Charger 2 Damper

The evolution of the acclaimed Charger, RockShox’s most advanced damper, brings a whole new level of performance and refinement for each intended use.
The new damper designs provides a wider range of low speed compression adjustment in the Open mode, with a more usable Pedal setting that excels on rolling trails. The Firm setting on Pike and Lyrik has be re-tuned, and remote options with OneLoc provide on-the-fly access to the Firm mode and are an excellent match with RockShox Deluxe, Super Deluxe and Super Deluxe Coil remote rear shocks.

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Maxle Lite™

Who obsesses over the weight of their wheel axles? It’s ridiculous, right? It’s just a rod of metal bolting the wheels to your bike. But then again, Maxle Lite is a nifty thru axle system that makes your bike both lighter and stiffer. And less weight makes it easier to get your bike to do what you want. Especially when you don’t need to bring tools to remove it, front or rear. And that extra stiffness gives you the precision to hit your lines no matter how burly. So maybe that obsession isn’t so ridiculous after all. Now available in 20 x 110mm and 15 x 100mm sizes.

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Maxle Stealth

Who knew we could make a thru axle disappear? The new Maxle Stealth offers a light, low profile alternative to Maxle Lite and Maxle Ultimate.

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The new OneLoc remote provides total control over your suspension at your fingertips.The increased leverage at the bar, translate in a smoother and easier actuation. Its countless mounting options (left and right, below or above the bar, tall or standard clamp) make it an ideal companion for SRAM's drivetrain, brakes and RockShox's Reverb remote.

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Rapid Recovery™

Who doesn't want more available wheel travel for successive hits? The Rapid Recovery System allows the shock to recovery faster between consecutive bumps, letting the wheel track the ground with greater precision. This more active suspension system, doesn’t pack up and enables the bike to ride in a higher and softer part of the spring rate.  Rapid Recovery gives the rider access to more available wheel travel, bump after bump, to achieve a smoother and more controlled ride.

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Sag Gradients™

Don’t set your sag correctly, and you might as well be hopping onto someone else’s bike. But why bust out plastic clips or rulers to keep your suspension fine-tuned? Our sag gradients are printed right on our fork’s upper tubes and shock damper bodies making perfect suspension setup easy and accurate. So give mom back her plastic clip and ruler.

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Solo Air™

Solo Air is like a Buddhist monk. Its enlightened design lets you add air to your forks through a single Schrader valve, filling both the positive and negative air spring chambers simultaneously. So they’re always in perfect equilibrium, like Yin and Yang. Giving you a plush, predictable ride you can set up in seconds, with the lightest weight air spring on the market.

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Torque Caps

Torque Caps make the bond between hub and fork dropout stronger, with an increased surface area connecting the two. This creates a stronger, stiffer interface, giving you a more responsive front wheel and more control. So you concentrate on the most important connection, the one between your bike and the trail.

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Documents Available for SID RL 15x100

See more documents available for RockShox products.

SRAM Warranty (589.9 KB, PDF) - 29 Pages

Languages covered: EN, DE, ES, FR, IT, NL, PT, JA, ZH, PL, DA, CS, EL, RO, FI, SV, GA, BG, MT, SK, SL, HU, ET, LV, LT, KO, RU
Updated May 3, 2019



Industry Reviews

“The all new SID brings the fork back to its original roots, XC racing.” |

“Reducing the travel to either 80 mm or 100 mm travel, the new SID could be designed with shorter and lighter upper tubes and air shafts, making it almost 100 g lighter than its predecessor.”


“Having ridden a number of XC focused forks, when testing the SID we were expecting good performance, but perhaps from a chassis that prioritizes weight over strength; we could not have been more wrong! “

by Moritz Dittmar,, April 26, 2016
RockShox SID | |April 2016

“The lockout is miles beyond the old one. It’s firm and solid. Perfect for racing.”


“After turning off the lockout, the new SID changes its face. It becomes almost a smaller Pike. Small bump performance is excellent, as is mid-stroke support thanks to the Dig Valve. It’s exactly what you’d want from an XC fork: supple off the top and highly progressive through the travel.”


“We could never get the new SID out of its comfort zone, no matter how hard we pushed it”

by DANIEL NAFTALI,, April 29, 2016
RockShox SID | | April 2016

“SID responses very well on the trail and gives great feedback. Even without Lockout you have minimum loss.”


“The new SID is stiff, very light and could totally convince us in the main discipline XC on our test trails.”

by Hannes, MTB NEWS, April 29, 2016