The all-new RockShox BoXXer Ultimate D1 features a 38mm chassis equipped with the DebonAir+ twin tube air spring that 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. The fork comes in a signature Electric Red colorway with an all-new graphics package, and includes premium fender compatibility with a RockShox Bolt-On Fender included with purchase. Short and tall crown options are available to accommodate different head tube lengths. The Charger 3 damper is tuned specifically for BoXXer's updated chassis and spring, featuring High Speed Compression, Low Speed Compression, and a revamped Low Speed Rebound where every click is meaningful and exact. ButterCups technology blocks 20% of high-frequency trail chatter to reduce hand and arm fatigue. The fork is e-bike approved and designed for aggressive trail and downhill riding.