RockShox BoXXer Ultimate Charger 3.2 RC2 29" Suspension Fork

Item number: 228958
RockShox BoXXer Ultimate Charger 3.2 RC2 29" Suspension Fork - black | 1 1/8" | 20 mm thru-axle | 110 mm | 29" | 52 mm | 200 mm

Product Description

Conquer Gravity with the RockShox BoXXer Ultimate Charger 3.2 RC2 29" suspension fork


The BoXXer Ultimate Charger 3.2 RC2 29" Suspension Fork from RockShox is designed specifically for the adrenaline-pumping world of Downhill cycling, offering unmatched control and durability. Crafted with an aluminum steerer tube and crown, and magnesium lower legs, this suspension fork combines lightweight performance with robust strength. The 38 mm stanchion tubes, made of aluminum, ensure precise handling even on the most demanding trails. It's E-Bike ready, accommodating E-Bikes & Pedelecs up to 25 km/h, making it a versatile choice for both traditional and electric downhill bikes. The fork's thru-axle system (20 x 110 mm) guarantees a secure and stiff wheel connection, enhancing overall bike stability. With high-speed and low-speed compression damping, riders can fine-tune their ride to match the terrain, ensuring a smooth descent every time. The rebound damping feature allows for a customizable suspension response, adapting to your riding style for maximum control. The air pressure spring rate adjustment provides a tailored suspension setup, ensuring that every ride is as comfortable as it is thrilling. Compatible with disc brakes up to 220 mm, this fork supports powerful braking systems for reliable stopping power. Whether you're navigating steep drops on a 27.5" or a 29" bike, the BoXXer Ultimate Charger 3.2 RC2 offers the performance and reliability you need to take your downhill adventures to the next level.

Guidelines for Replacing E-bike Components:

Before you replace components on your e-bike, please read through the guidelines for component replacement for CE-marked e-bikes/pedelecs with pedal assistance.

Product Specifications:

Application:
Downhill, MTB
Wheel size:
27,5", 29"

black | 1 1/8" | 20 mm thru-axle | 110 mm | 29" | 48 mm | 200 mm:

Wheel size:
29"
Travel:
200 mm

black | 1 1/8" | 20 mm thru-axle | 110 mm | 29" | 52 mm | 200 mm:

Wheel size:
29"
Travel:
200 mm

red | 1 1/8" | 20 mm thru-axle | 110 mm | 29" | 48 mm | 200 mm:

Wheel size:
29"
Travel:
200 mm

red | 1 1/8" | 20 mm thru-axle | 110 mm | 29" | 52 mm | 200 mm:

Wheel size:
29"
Travel:
200 mm

Technical Information:

Wheel Standard:
20 x 110 mm (Boost)
Steerer Tube Diameter (Crown Race):
30 mm
Crown Material:
Aluminum
Spring Rate:
Via Air Pressure
Steerer Tube Material:
Aluminum
Stanchion Material:
Aluminium
Lower Leg Material:
Magnesium
Stanchion Tube Diameter:
38 mm
Axle System:
Thru Axle (20 x 110 mm)
Brake Mount:
Disc PM8 (Direct Mount 203 mm)
Travel Adjustment:
No
Compression Damping:
High-Speed and Low-Speed
Rebound Damping:
Yes

black | 1 1/8" | 20 mm thru-axle | 110 mm | 29" | 48 mm | 200 mm:

Steerer Tube:
1 1/8"
Axle Standard:
20 mm thru-axle
Installation Width:
110 mm
Installation Height:
605 mm
Fork Offset:
48 mm

black | 1 1/8" | 20 mm thru-axle | 110 mm | 29" | 52 mm | 200 mm:

Steerer Tube:
1 1/8"
Axle Standard:
20 mm thru-axle
Installation Width:
110 mm
Installation Height:
605 mm
Fork Offset:
52 mm

red | 1 1/8" | 20 mm thru-axle | 110 mm | 29" | 48 mm | 200 mm:

Steerer Tube:
1 1/8"
Axle Standard:
20 mm thru-axle
Installation Width:
110 mm
Installation Height:
605 mm
Fork Offset:
48 mm

red | 1 1/8" | 20 mm thru-axle | 110 mm | 29" | 52 mm | 200 mm:

Axle Standard:
20 mm thru-axle
Installation Width:
110 mm
Steerer Tube:
1 1/8"
Installation Height:
605 mm
Fork Offset:
52 mm

Approved For:

Max. disc brake diameter:
220 mm

Product Features:

  • LinearXL air spring provides a consistent and predictable ride feel, supported by a bottom-out bumper for end-stroke control
  • ButterWagonTech ensures a constant oil supply to the bushings, reducing friction and maintaining smooth performance throughout the entire service interval
  • Charger 3.2 damper with rebound and compression tunes matched to the LinearXL air spring enables virtually silent operation, keeping riders focused on the trail
  • Control bezel with numbered compression adjuster allows quick and intuitive setup – start at “0” and easily increase or decrease damping
  • Minimalist graphics design with a clean, modern look
  • ButterCups technology reduces up to 20% of high-frequency trail chatter, minimizing hand and arm fatigue
  • Low-friction SKF wiper seals ensure long-lasting performance and smoother response
  • Maxima 920 oil (15w blend) reduces overall friction and improves fork function

Manufacturer Number:

  • black | 1 1/8" | 20 mm thru-axle | 110 mm | 29" | 48 mm | 200 mm: 00.4021.277.007
  • black | 1 1/8" | 20 mm thru-axle | 110 mm | 29" | 52 mm | 200 mm: 00.4021.277.005
  • red | 1 1/8" | 20 mm thru-axle | 110 mm | 29" | 48 mm | 200 mm: 00.4021.277.006
  • red | 1 1/8" | 20 mm thru-axle | 110 mm | 29" | 52 mm | 200 mm: 00.4021.277.004

Contents:


  • 1 x RockShox BoXXer Ultimate Charger 3.2 RC2 suspension fork

  • 1 x RockShox Maxle Stealth thru axle

  • 1 x RockShox flat crown

  • 1 x RockShox high crown

  • 1 x star nut

  • 2 x RockShox Bottomless Tokens

  • 1 x RockShox fender

Manufacturer:

SRAM LLC
1000 W. Fulton Market
4th Floor
Chicago
IL 60607
USA
info@sram.com

Distributor:

SRAM Europe Sales and Services B.V.
Paasbosweg 16
3862 ZS Nijkerk
Netherlands
info@sram.com

Models:

  • black | 1 1/8" | 20 mm thru-axle | 110 mm | 29" | 48 mm | 200 mm, available from 11.03.2026
    1,840.00€
  • black | 1 1/8" | 20 mm thru-axle | 110 mm | 29" | 52 mm | 200 mm, available from 11.03.2026
    1,840.00€
  • red | 1 1/8" | 20 mm thru-axle | 110 mm | 29" | 48 mm | 200 mm, available from 11.03.2026
    1,840.00€
  • red | 1 1/8" | 20 mm thru-axle | 110 mm | 29" | 52 mm | 200 mm, available from 11.03.2026
    1,840.00€

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