RockShox SID Ultimate Race Day Fork 120mm Gloss Black with Maxle Stealth & Fender

Experience the pinnacle of cross-country performance with the RockShox SID Ultimate Race Day fork. Designed with precision and engineered for speed, this fork features a rigid 35mm chassis that perfectly balances lightweight construction with exceptional stiffness. The SID Ultimate is equipped with the revolutionary Charger Race Day 2 damper, offering two distinct compression settings—Open for smooth, responsive travel and a rock-solid Lockout to maximize pedaling efficiency when the trail flattens out.

Every aspect of the SID Ultimate has been refined to enhance your ride. The new DebonAir+ spring improves small-bump sensitivity and mid-stroke support, delivering a smoother and more controlled ride over varied terrain. Additionally, the advanced bushing package reduces friction, ensuring silky smooth movement and durability. Finished in a stunning Gloss Black or the signature Blue Crush colorway, this fork not only performs at the highest level but also looks the part on race day.

Built for modern 29" wheels with 120mm of travel, the SID Ultimate accommodates aggressive trail demands while remaining lightweight enough to keep you at the front of the pack. The inclusion of Maxle Stealth thru-axle and bolt-in torque cap adapters ensures compatibility with a wide range of hubs and enhances frame stiffness. Whether you’re racing for the podium or pushing your limits on rugged singletrack, the SID Ultimate delivers unmatched suspension performance that keeps you confident and in control.

What It’s Good For

• Optimizing cross-country racing performance with lightweight and rigid 35mm chassis
• Providing smooth, responsive suspension with DebonAir+ small-bump sensitivity
• Offering precise control through two-position Charger Race Day 2 damper settings (Open and Lockout)
• Reducing friction and enhancing ride smoothness with advanced bushing package
• Compatibility with 29" wheels and 120mm travel for versatile trail performance
• Seamless integration with modern thru-axle systems via Maxle Stealth and torque cap adapters
• Durability and noise reduction thanks to Maxima Plush damping fluid
• Adding visual appeal with high gloss black finish and distinctive Blue Crush graphics

What It’s NOT Good For

• Riding styles that demand more than 120mm of travel, such as aggressive downhill or enduro
• Use without purchasing the corresponding remote lockout (sold separately)
• Bikes incompatible with 29" wheels or 15x110mm BOOST™ axle spacing
• Applications requiring suspension forks with multiple compression settings beyond Open and Lockout

Frequently Asked Questions

Is the remote lockout included with the fork?
The SID D1 remote lockout is not included and must be purchased separately. Compatible options are the 2-position remote (R8079000) or the 3-position remote (R8079001).

What wheel sizes and travel is this fork designed for?
This fork is designed specifically for 29" wheels with 120mm of travel, making it ideal for cross-country and light trail riding.

Can I use this fork on an e-bike?
Yes, the RockShox SID Ultimate Race Day fork is approved for e-bike use, ensuring durability and performance under higher power demands.

What makes the Charger Race Day 2 damper special?
The Charger Race Day 2 damper is RockShox’s lightest and most performance-driven damper, featuring two compression positions for adaptable riding: open for smooth suspension and lockout for efficient pedaling.