RockShox SID Ultimate Race Day 2021 Fork

More Information
Brand	RockShox
Wheel Size	29-inch

Rockshox have been developing and innovating mountain bike suspension systems since the early 90's and have boasted dozens of models through the decades. They also produce the only hydraulic dropper seatpost currently available - the lauded Reverb. Now owned by SRAM, their quality components speak for themselves.

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RockShox SID Ultimate Race Day 2021 Fork

Riding SID Ultimate means every detail is considered. Packed in a stiff, lightweight 35mm chassis, and equipped with the lightest performance damper we've ever made - Charger™ Race Day. Perfectly balanced to satiate your need for XC speed.

Technology

Bottomless Tokens

Bottomless Tokens allow you to easily custom tune your air-spring performance to best match your 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% of their fork’s travel.

DebonAir

A lightweight, highly tune-able air spring designed to offer a coil-like consistent feel throughout the travel - effortlessly soaking up the smallest hits and tracking the slightest changes in the terrain.

Sag Gradients

Measurement gradients indicating the current sag and travel settings are conveniently located on the upper tubes so that you always know how much travel you are running. You won’t find this anywhere else but RockShox.

Boost

Boost is the standard wheel and drivetrain specification that opens the opportunity for improved frame geometry with shorter chain stays, wider and stiffer suspension pivots, wider range of chainring options, as well as more clearance for bigger tires and wider, stiffer wheels.

Maxima Plush Fluid

Developed with the world's fastest racers, on the world's toughest circuits. Maxima Plush Fluid is designed to protect from suspension wear, reduce friction, and silence damper noise while maintaining a consistent feel in all temperatures.

SKF Seals

Everyone loves a good collaboration, which is why we’ve been working with SKF, the world’s highest-performance seal manufacturer, for over 5 years. Together we’ll provide ultra-low friction wiper seals, less fatigue, and unmatched suspension feel, all while keeping the dirt where it belongs- because no one wants dirt in there.

Charger Race Day Damper

A new damper built for speed. Our lightest production damper. Ever. Performance packed with a rock-solid lockout to power up climbs and smash through sprint finishes.

Features

New 35mm chassis is the perfect blend of light weight and stiffness for the modern XC bike
New Charger Race Day Damper - our lightest production damper with rock-solid lockout
New DebonAir air spring is tuned specifically to meet the demands of XC and maintains a higher ride height for increased confidence and control
New Ultra-low friction SKF wiper seals provide long lasting fork performance and improve overall suspension feel
Maxima Plush damping fluid reduces friction and silences damper noise
Machined/anodised crown
New short fender compatibility. Includes RockShox branded 2-bolt short fender
Signature SID Blue colorway and Ultimate High Gloss Black
Ultimate foil graphics package