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RockShox
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RockShox

BoXXer Ultimate Charger 3.2 27.5in Boost Fork

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$1,999.00

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LinearXL and ButterWagonTech elevate the BoXXer Ultimate Charger 3.2 27.5in Boost Fork

What Our Gearhead® Experts Are Saying:


"This fork is built for racers who want full control. The RC2 damper lets me fine-tune for track conditions, and ButterCups noticeably reduce chatter. It’s composed at speed and incredibly consistent."


Engineered for elite downhill performance, the BoXXer Ultimate Charger 3.2 27.5in Boost Fork centers its design on composure. The LinearXL air spring provides a position-sensitive linear curve, reducing speed sensitivity and delivering predictable support from initial stroke to bottom-out. A jounce bumper manages deep compressions with control rather than abrupt ramp-up.


The Charger 3.2 RC2 damper offers fully independent high-speed and low-speed compression adjustment, re-tuned to align with the LinearXL spring characteristics. ButterCups isolate the air spring and damper shafts to reduce high-frequency vibration, while ButterWagonTech continuously lubricates bushings for sustained sensitivity throughout the service interval. SKF seals and Maxima oil further reduce friction.


Details

  • Race-ready downhill suspension fork
  • Optimized for 27.5in wheels with Boost spacing
  • LinearXL air spring with jounce bottom-out
  • Charger 3.2 RC2 with independent HSC/LSC
  • ButterWagonTech constant bushing lubrication
  • ButterCups reduce high-frequency vibration
  • 38mm precision downhill chassis
  • Item #RSXB0D4
Travel
200mm
Stanchion Material
aluminum
Lower Material
magnesium
Crown Material
forged 6061 T-6 aluminum
Wheel Size
27.5in
Steer Tube Diameter
1-1/8in
Stanchion Diameter
38mm
Axle To Crown
586mm
Spring Type
LinearXL air spring
Damper
Charger 2.3 RC
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
Activity
downhill, enduro