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BoXXer Ultimate Charger 3.2 29in Boost Fork
Style & Size:
Quantity
Only 1 In stock
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Predictable linear speed meets elite damping in the BoXXer Ultimate Charger 3.2 29in Boost Fork
What Our Gearhead® Experts Are Saying:
"This is my pick for serious 29er downhill builds. The RC2 damper lets me fine-tune for different tracks, and the LinearXL spring keeps it predictable through braking bumps. It stays smooth and controlled all the way through the run."
On long, rough downhill tracks, speed rewards composure. The BoXXer Ultimate Charger 3.2 29in Boost Fork from RockShox is built to isolate chaos before it reaches us, keeping posture stable and energy preserved when the course gets demanding.
LinearXL provides a consistent, position-sensitive spring curve that maintains support through high-speed impacts, with a jounce bottom-out bumper for confident landings. ButterWagonTech ensures fresh Maxima oil reaches the bushings with every millimeter of travel, sustaining sensitivity run after run. ButterCups reduce chatter by up to 20%, helping limit arm fatigue over extended descents. The Charger 3.2 RC2 damper delivers independent high- and low-speed compression tuning with visible adjusters for simplified setup. Combined with a 38mm chassis tuned for precision, this fork keeps modern 29in downhill bikes composed at race pace.
Details
- Elite downhill fork for modern 29in builds
- Boost spacing for current DH platforms
- LinearXL air spring with jounce bottom-out
- Charger 3.2 RC2 with HSC and LSC tuning
- ButterWagonTech for consistent lubrication
- ButterCups vibration reduction system
- 38mm precision downhill chassis
- Item #RSXB0D5
- Travel
- 200mm
- Stanchion Material
- aluminum
- Lower Material
- magnesium
- Crown Material
- forged 6061 T-6 aluminum
- Wheel Size
- 29in
- Steer Tube Diameter
- 1-1/8in
- Stanchion Diameter
- 38mm
- Axle To Crown
- 605mm
- Rake
- 48mm, 52mm
- Spring Type
- LinearXL air spring with ButterCup
- Damper
- Charger 3.2 RC2 with ButterCups
- Adjustability
- rebound, low-speed compression, high-speed compression
- Axle
- 20 x 110mm Boost
- Brake Compatibility
- disc
- Rotor Compatibility
- 200–220mm
- Includes
- bolt-on fender, bottom out tokens, short/tall crowns star nut, Maxle Stealth
- Claimed Weight
- 2943g
- Manufacturer Warranty
- 2 years
- Activity
- downhill, enduro
BoXXer Series
Totally Predictable
Predictability is fundamental. Riding BoXXer proves it.
Fundamentals Of Faster
Composure = Speed
BoXXer better isolates impact and vibration but still allows feel for bike and terrain inputs.
Simple Setup
The all-new BoXXer visibly indicates settings and makes fine-tuning easy.
Enable The Air Spring
LinearXL is a whole fork approach to air spring design, delivering predictable position-sensitive control.
Faster From The Inside Out
Stanchions That Breathe
Strategically placed breather holes in the stanchions allow for the lower leg air volume to increase as the fork goes through its travel.
Charger 3.2
Re-tuned for the unique position-sensitivity of LinearXL, Charger 3.2 delivers speed-sensitive control with fully independent High Speed and Low Speed Compression damping.
Linear XL AirAnnex
The AirAnnex on BoXXer’s lower leg increases the lower leg air volume, which reduces the air-spring progressivity and speed-sensitivity inherent to traditional lower leg designs.
Precision, Not Vibration
Our most aggressively precise 38mm chassis, optimized for race-winning speed. Precise speed, without the deflection and energy-robbing vibration typical of forks with excessively large stanchions.
ButterWagonTech
ButterWagonTech is a proprietary matrix of divots on BoXXer stanchions that works to carry (or ‘wagon’) fresh layers of our exclusive, high-density Maxima oil to the bushings with every millimeter of travel.
Predictability Is Linear
LinearXL provides a position-sensitive linear curve. That means as you move through the travel, the rate at which the fork increases force never changes, delivering predictability.
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RockShox: Built for Bigger Hits
RockShox pioneered mountain bike suspension and keeps pushing it forward, building forks, shocks, and droppers that stay composed in the big hits and keep riders faster, more supported, and in control when the trail turns fast and rough.