RockShox has unveiled the latest iteration of its renowned BoXXer downhill fork, introducing a suite of technical enhancements designed to elevate performance on the most demanding trails. This new model integrates advanced features aimed at providing riders with unparalleled control and comfort during high-speed descents.
Linear XL Air Spring: A New Approach to Suspension
Central to the updated BoXXer is the Linear XL air spring system, which reimagines traditional air spring design by reducing speed sensitivity and emphasizing position-based control. This innovation results in a consistently linear spring curve, offering a supple initial stroke, supportive mid-stroke, and a jounce bottom-out system that ensures controlled end-stroke behavior. The AirAnnex chamber, located on the air spring side, increases lower-leg air space to minimize unwanted progression, while breather ports in the stanchions allow pressure to equalize as the fork moves through its travel. Together, these features lower breakaway force and deliver a more consistent feel regardless of speed or impact severity. (pinkbike.com)
Charger 3.2 Damper: Enhanced Damping Performance
Paired with the Linear XL air spring is the Charger 3.2 damper, re-tuned to complement the fork’s position-sensitive spring characteristics. This damper features increased damping to offset the reduced friction of the new BoXXer. Independent high- and low-speed compression circuits provide clear, usable adjustment, while internal refinements focus on reducing noise and unwanted vibration. (pinkbike.com)
ButterWagonTech: Reducing Friction and Enhancing Durability
RockShox has also introduced ButterWagonTech, a new technology that uses a textured stanchion surface to continuously carry oil to the bushings, maintaining lubrication throughout the unit and decreasing friction. The new BoXXer also features ButterCups that isolate high-frequency vibration—claimed to reduce trail chatter by up to 20%—helping manage arm pump on long, rough tracks. SKF-developed wiper seals further reduce drag deep in the travel. (pinkbike.com)
Specifications and Availability
The new BoXXer is available in both Ultimate and Select trims, delivering the same core spring philosophy across the range, with differences focused on damping adjustability and friction reduction to increase performance. The common thread is a fork designed to stay consistent run after run, rather than feeling brilliant one moment and unpredictable the next. The BoXXer Ultimate is priced at $3,435, while the BoXXer Select is available for $2,575. (pinkbike.com)
For riders seeking the pinnacle of downhill performance, the new RockShox BoXXer fork offers a comprehensive suite of innovations aimed at enhancing control, comfort, and durability on the most challenging trails.