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ROCKSHOX BOXXER ULTIMATE FORK
Born from racing, BoXXer promises one thing above all—composure. By eliminating chaos before it reaches the rider, every run delivers predictable speed, traction, and control. The all-new LinearXL air spring provides a coil-like ride—supple off the top, supportive through the mid-stroke, and backed by a jounce bottom-out bumper for confident end-stroke control—giving you unwavering consistency and predictability. Found only in our Ultimate forks, ButterWagonTech ensures a constant supply of oil to the bushings, reducing friction and maintaining smooth performance throughout the entire service interval. Intuitive HSC/LSC controls on the Charger 3.2 damper with ButterCups technology make setup fast, understandable, and easy to communicate. You’re so composed you don’t realize you’re going faster. But the clock says it all.
SPECIFICATIONS
| Wheel size |
27.5", 29" |
| Travel (mm) |
200mm |
| Damper Type |
Charger 3.2 RC2 W/ButterCups |
| Fork offset |
44mm (27.5"), 48mm (27.5"), 48mm (29"), 52mm (29") |
| Color (FS) |
BoXXer Electric Red - Gloss, Gloss Black |
| Axle |
20x110mm BOOST™ |
| Upper tube type |
38mm aluminum |
| Volume reducer |
0/6 Tokens |
| Spring |
DebonAir+ W/ButterCups, Linear XL W/ButterCup |
| Crown OD (mm) |
42 |
| Bottom Out |
n/a |
| Compression tune |
C5 |
| Rebound tune |
R55 |
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FEATURES
- NEW LinearXL air spring delivers a consistent and predictable ride feel backed by a jounce bottom-out bumper for end-stroke control
- NEW ButterWagonTech ensures a constant supply of oil to the bushings, reducing friction and maintaining smooth performance throughout the entire service interval
- NEW Charger 3.2 damper with new Rebound/Compression tunes that match LinearXL air spring, achieves virtually silent performance, keeping riders focused on the trail
- NEW Control bezel with numbered Compression adjuster for intuitive adjustments—start at "0" and easily add or decrease damping
- NEW Graphics package—minimalist design, maximum impact
- ButterCups technology block 20% of high-frequency “trail chatter” to reduce hand and arm fatigue
- Low-grab SKF wiper seals deliver long-lasting fork performance and a smoother ride
- Maxima 920 blended 15w reduces overall fork friction
- Bolt-on fender compatibility with front and rear coverage (BoXXer Bolt-On Fender sold separately)
- Available in Electric Red or Ultimate High Gloss Black Signature colorways
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