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RockShox
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RockShox

BoXXer Select 29in Boost Fork

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$1,499.00

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Position-sensitive LinearXL spring powers the BoXXer Select 29in Boost Fork

What Our Gearhead® Experts Are Saying:


"This is a solid choice for racers wanting 29in rollover and consistent support. The damper stays controlled on long descents, and the fork doesn’t spike under heavy compressions."


For high-speed downhill courses and long, rough tracks, the BoXXer Select 29in Boost Fork delivers composed, predictable suspension performance. The LinearXL air spring uses a position-sensitive linear curve that minimizes speed sensitivity, ensuring consistent support from initial stroke through bottom-out. A jounce bumper system provides controlled end-stroke resistance without abrupt ramp-up.


The Charger 3.2 RC damper is re-tuned to match the spring curve, offering speed-sensitive damping with independent rebound and compression control. Its quiet operation enhances focus during race runs. The 38mm chassis is optimized for downhill precision, balancing torsional stiffness with compliance to reduce deflection and preserve traction.


Details

  • Downhill fork for modern 29in race builds
  • Boost hub spacing for current DH frames
  • LinearXL air spring with linear ride curve
  • Charger 3.2 RC damper with rebound adjustment
  • 38mm chassis for high-speed precision
  • Item #RSXB0D3
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
Damper
Charger 3.2 RC
Adjustability
low speed compression, rebound
Lockout
no
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
2849g
Manufacturer Warranty
2 years
Activity
downhill, enduro
Manufacturer Part Number
[48mm offset] 00.4021.276.003, [52mm offset] 00.4021.276.002