BoXXer Ultimate D1

Redesigned by the world’s fastest racers, for the world’s fastest racers, you want BoXXer in your corner. The all-new 38mm 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. 38mm 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 Lightweight machined and anodized crowns for premium looks and durability; includes short and long crowns Crown height gradient creates a visual guide to simplify setup, no ruler required Charger 3 RC2 damper tuned for BoXXer’s updated chassis and spring. Featuring High Speed Compression, Low Speed Compression, and a revamped Low Speed Rebound 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, and Maxima Plush Dynamic Suspension Lube reduces friction, lasts longer, and enhances suspension performance Premium fender compatibility, RockShox bolt-on fender included