RockShox SID Ultimate Race Day 2P Remote 2025 Fork

Climb mountains. Charge descents. SID Ultimate isn’t like other XC forks. It is lighter than ever with a formidable 35mm chassis that holds the line when you’re on the edge. The new Race Day 2 damper offers reliably rock-solid Lock and plush Open compression positions. With more positive and negative air volume, SID’s latest DebonAir+ spring delivers sensationally smooth action at the top of the travel and full tunability for any rider or race.

Technology

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.

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.

Charger Race Day 2 Damper

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

DebonAir+

DebonAir+ is built to strike the perfect balance of what riders really want: butter-like small bump feel, increased support throughout the travel, and higher overall ride height for more confidence when things get steep.

Features

• 35mm chassis is the perfect¬ blend of light weight and rigidity for the modern XC bike. Plus, RockShox made it lighter…again
• Charger Race Day 2 damper is the lightest damper on the market. This 2P damper features two-position compression adjustment: Open or a rock-solid Lock
• DebonAir+ provides more small-bump sensitivity and tunable mid-stroke support
• Bushing package maximizes bushing overlap for a smooth, solid ride
• Maxima Plush Dynamic Suspension Lube reduces friction, lasts longer, and enhances suspension performance ride after ride
• Crown machined to shave weight without compromising strength and stiffness
• Electric Red Signature colorway
• Bolt-in torque cap adapters included for use with standard hub end-caps

Specifications

• Wheel Size: 29-inch
• Travel: 110mm, 120mm
• Fork Offset: 44mm (29-inch)
• Steerer: 1.5" Tapered
• Damper Type: Charger Race Day 2
• Axle: 110 x 15mm Boost
• Upper Tube Type: 35mm Tapered Wall Aluminium
• Damper Adjust: 2 pos TwistLoc/OneLoc (10mm Cable Pull– sold separately), Crown
• Volume Reducer: 0/3 Tokens, 1/3 Tokens
• Spring: DebonAir+
• Maximum Rotor Size: 220mm
• Minimum Rotor Size: 180mm
• Weight: 1480g (Based On: 120mm travel, Crown Adjust W/Maxle Stealth)

Note: Remote sold separately.