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RockShox
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RockShox

BoXXer Select 27.5in Boost Fork

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$1,499.00

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Race-bred predictability meets park-ready performance in the BoXXer Select 27.5in Boost Fork

What Our Gearhead® Experts Are Saying:


"I recommend this to riders who want true downhill composure without jumping to the top trim. The LinearXL spring feels incredibly consistent through the travel, and the Charger 3.2 RC damper is simple to dial. It tracks well through chatter and stays supportive on big compressions."


When we’re lining up at the start gate or dropping into blown-out park laps, chaos costs speed. The BoXXer Select 27.5in Boost Fork from RockShox is built around one core principle—predictability—so we stay composed when the course pushes back.


At its heart is the all-new LinearXL air spring, delivering a position-sensitive linear curve that stays supple off the top and supportive through the mid-stroke. A jounce bottom-out bumper adds confidence when we land deep or charge into steep compressions. Paired with the Charger 3.2 RC damper, rebound and compression are intuitive and nearly silent, keeping focus on the track instead of the fork. The 38mm chassis provides precise steering control without harsh deflection, while SKF wiper seals and Maxima 920 oil reduce friction for consistent performance lap after lap. With Boost spacing and dedicated 27.5in geometry, this fork brings race-proven composure to aggressive downhill builds.


Details

  • Downhill suspension fork for race and park riding
  • Optimized for 27.5in wheels with Boost spacing
  • LinearXL air spring with jounce bottom-out control
  • Charger 3.2 RC damper with independent rebound
  • 38mm chassis for precise steering stiffness
  • Low-friction SKF seals and Maxima oil
  • Item #RSXB0D2
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
Rake
44mm, 48mm
Spring Type
LinearXL air spring
Damper
Charger 3.2 RC
Adjustability
rebound, low-speed compression
Lockout
no
Axle
Boost 20 x 110
Brake Compatibility
disc
Rotor Compatibility
200–220mm
Includes
bolt-on fender, bottom-out tokens, short/tall crowns star nut, Maxle Stealth
Claimed Weight
2849g
Manufacturer Warranty
2 uears
Activity
downhill, enduro
Manufacturer Part Number
[44mm offset] 00.4021.276.001, [48mm offset] 00.4021.276.000