SID SL Ultimate Race Day 3-Position 29in Boost Fork
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Warning: California Proposition 65
Ultra-light SID SL Ultimate Fork with race-tuned damping for pure XC speed
We count every gram and every second when it comes to building our race machines, and the SID SL Ultimate Fork delivers exactly what we need to chase podiums. RockShox engineered this ultralight fork for modern cross-country courses, where efficiency, control, and just enough forgiveness keep us charging hard from start to finish.
The SID SL Ultimate features the all-new Charger Race Day 2 damper—the lightest on the market—giving us three dialed compression settings: Open, Pedal, and Lock. Whether we’re hammering climbs or sprinting through techy sections, we can shift the fork's behavior with precision. A tuned DebonAir spring keeps ride height high for maximum control, while Maxima Plush Dynamic Suspension Lube keeps the action smooth and friction low. With a refined chassis, machined crown, and World Cup pedigree, this fork is ready for our fastest lines.
Details
- Lightweight XC fork built for cross-country racing
- Ideal for modern XC courses with steep climbs and technical descents
- Charger Race Day 2 damper features Open, Pedal, and Lock modes
- DebonAir spring tuned for efficient support and control
- Maxima Plush Dynamic Suspension Lube enhances small bump compliance
- Machined crown reduces weight while improving stiffness
- Available in 100mm and longer 110mm travel options
- Signature “Blue Crush” colorway and Ultimate graphics package
- Item #RSXB07H
- Travel
- 100, 110mm
- Stanchion Material
- aluminum
- Lower Material
- magnesium
- Crown Material
- aluminum
- Wheel Size
- 29in
- Steer Tube Diameter
- 1.5in tapered
- Stanchion Diameter
- 32mm
- Axle To Crown
- [100mm] 506mm, [110mm] 516mm
- Rake
- 44mm
- Spring Type
- air, DebonAir
- Damper
- Charger Race Day 2
- Adjustability
- 3-positon compression, rebound
- Lockout
- yes
- Axle
- 15 x 110mm Boost
- Brake Compatibility
- Post Mount
- Rotor Compatibility
- [min] 160mm, [max] 200mm
- Includes
- ziptie fender, star nut, Maxle Stealth
- Claimed Weight
- [110mm] 2lb 15.7oz (1352g)
- Activity
- cross-country
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