RockShox BoXXer Ultimate 27.5" D1 Fork

Redesigned by the world's fastest racers, for the world's fastest racers, you want BoXXer in your corner. The all-new 38 mm chassis is equipped with the DebonAir+ twin tube air spring that will have you thinking it's a coil. Paired with a Charger 3 RC2 damper tuned for downhill speed, BoXXer Ultimate takes you straight to the top step of the podium. And with our new crown adjustment lines, setup is a breeze—no rulers required.

Features:

• 38 mm chassis designed to meet the needs of the world's fastest racers with balanced stiffness and ride quality
• DebonAir+ twin tube air spring strikes the perfect balance between butter-smooth small bump feel, added support throughout the travel, and taller ride height for confidence when things get steep
• RockShox premium fender compatibility (RockShox Bolt-On Fender included with purchase)
• Lightweight machined and anodized crown for premium looks and durability
• Crown height gradient creates a visual guide to simplify setup, no ruler required
• Charger 3 damper tuned for BoXXer's updated chassis and spring. Featuring High Speed Compression, Low Speed Compression, and a revamped Low Speed Rebound, every click is meaningful and exact. This allows the rider to tune to perfection with every click
• ButterCups block 20% of high-frequency "trail chatter" to reduce hand and arm fatigue, leaving you feeling fresh with more control
• 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
• Maxima Plush Dynamic Suspension Lube reduces friction, lasts longer, and enhances suspension performance ride after ride

Specifications:

• Maximum Rotor Size: 220 mm
• Axle/Hub spacing: 20x110 mm Boost TA
• Maximum Tire Width: 81 mm
• Stanchions Diameter: 38 mm
• Wheel Diameter: 27.5''
• Rake: 48 mm
• Steerer Tube: 1 1/8''
• Brake Type: Disc
• Stanchions Material: Aluminum
• Lower Tubes Material: Magnesium
• Crown Material: Aluminum
• Damping: Charger 3 RC2 W/ButterCups
• Spring Adjustments: Air pressure, Bottomless tokens
• Spring Type: DebonAir+ W/ButterCups
• Steerer Tube Material: Aluminum
• Damping Adjustments: External begin stroke rebnd, low speed comp, high speed comp
• e-Bike approved: Yes