FINALLY - New RockShox BoXXer Details 9

This story begins where it all started: with the world’s best riders. From World Cup downhill courses to secret test tracks, the new BoXXer builds on a legacy of speed, dating back to the days of Nicolas Vouilloz and Steve Peat. Today’s elite athletes, like Vali Höll and Loris Vergier, helped us create the best BoXXer yet.

CONFIDENCE AND CONTROL. NO COMPROMISES.

Built on its high-performance legacy, the latest BoXXer was redesigned top to bottom to win races—or simply chase your buddies down the mountain. We could have made the stiffest fork possible, but we didn’t. We set out to deliver the best possible balance between stiffness, compliance, and comfort for maximum control. Two years of extensive development focusing on the critical blend of bending and torsional stiffness ratios resulted in the all-new 38mm BoXXer chassis.

After countless bike park laps, race runs, and lab test cycles, we found the perfect balance between ride quality, steering precision, and stiffness. It isn’t all about the numbers. It’s about giving you the control and feel you need to choose any line you like.

BoXXer’s 38mm stanchions are just the beginning. These upper tubes harmonize with the lowers to deliver ideal ride characteristics. Through extensive riding and testing, we tuned the stanchion wall thickness and lower leg architecture for stiffness that accepts steering input without beating up your hands. This way, you’re the one steering the fork, not the other way around.

BUILT TO HANDLE THE PRESSURE

BoXXer’s new DebonAir+ twin-tube design is unlike any air spring we’ve made before—and it rides that way. The action is so coil-like, it’s uncanny. Off the top, BoXXer is impossibly responsive and supple, but it wants to eat when the big square-edged hits start coming. Best of all, BoXXer’s air spring is infinitely tunable with both air pressure and Bottomless Tokens. Beat that, coil spring.

The new BoXXer rides on the twin tube air spring, a separate air chamber that nests inside of the 38mm uppers. Designing the air spring to work within the ID of the 38mm upper tubes initially caused the spring curve to become too progressive for even the heartiest of DH racers. So, we added the twin tube and boosted the air spring shaft diameter from the traditional 10mm to a hollow 14mm shaft, creating extra negative volume for the air spring.

By adding the twin tube sleeve, we can precisely control the different spring volumes: positive, negative, and casting (think trapped air in the lower leg). This optimizes the positive air chamber volume for that hole-swallowing linear spring curve, our most linear spring curve yet. You can use every single millimeter of travel (if you need it).

At the top of the travel, we boosted the negative air chamber volume to better absorb small bumps. At the bottom of the stroke, a new jounce bottom-out bumper gives you soft, clank-free landings off the biggest drops. Whether you’re cornering, careening through rocks, or on a choppy straightaway, BoXXer finds traction where you never thought to look.

SMOOTH IS FAST

BoXXer’s bushings get thirsty, so we found a way to keep them constantly lubricated as you pound through the roughest runs. Each upper tube has oil flow ports located near its bottom. As you crank out hot laps, these openings circulate more lube through the bushings. This fork gives friction the slip.

These oil flow ports have an added benefit when the fork is going through its travel on a wicked G-out. This new design evenly distributes air volume above the lower bushing, resulting in a consistent spring rate you can trust on the gnarliest drop-ins.

THE GOLDEN SOLUTION

The ButterCups you can’t live without in your 2023 Pike, Lyrik, and ZEB now reside in your BoXXer. Little gold-packaged rubber pucks live at the end of the damper and air spring shafts and fit into the lower leg of the fork. ButterCups dampen high-frequency vibrations before they hit your hands and arms and lead to an early end to an otherwise good day. Time to smash laps.

NO GUTS, NO GLORY

The revolutionary Charger 3 RC2 damper launched in our 2023 Pike, Lyrik, and ZEB forks is now making waves in our longest-travel DH fork. It took a fresh set of eyes to produce what became the original Charger 3 damper. We eliminated High-Speed Compression (HSC) and Low-Speed Compression (LSC) cross-talk—that overlap in adjustment functionality that ties HSC and LSC adjustments together, making truly independent tuning previously impossible. The result gives way to a new era of riding, where the decision between adding more damping and sacrificing your hands to a harsh ride doesn’t exist.

BoXXer Ultimate

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, 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.

• Damper: Charger 3 RC2 w/ ButterCups
• Spring: BoXXer DebonAir+ w/ ButterCups
• Wheel size: 27.5”, 29”
• Travel: 180mm†, 190mm†, 200mm
• Fork offset: 44mm (27.5”), 48mm (27.5”, 29”) 52mm (29”)
• Weight: 2,840g (200mm travel, 48mm offset)
• MSRP: $1,899, €2,279*, £2,029*

*Includes VAT, **AM Upgrade available, †Travel change kit available.

BoXXer

The new BoXXer technology that’s trusted by the world’s fastest racers is available in an approachable trim that doesn’t skimp on performance. Equipped with the new 38mm chassis, DebonAir+ twin tube air spring, and Charger 3 RC damper, BoXXer will suit champions and bike park regulars alike.

• Damper: Charger 3 RC**
• Spring: BoXXer DebonAir+**
• Wheel size: 27.5”, 29”
• Travel: 180mm†, 190mm†, 200mm
• Fork offset: 44mm (27.5”), 48mm (27.5”, 29”) 52mm (29”)
• Weight: 2,680g (200mm travel, 48mm offset)
• MSRP: TBD