
RockShox BoXXer Ultimate - Electric Red
Redesigned by the world’s fastest racers, for the world’s fastest racers, you want BoXXer in your corner. The 38mm chassis is equipped with the DebonAir+ twin tube air spring that will have you thinking it’s a coil. Paired with a Charger 3 RC2 damper tuned for downhill speed, BoXXer Ultimate takes you straight to the top step of the podium. And with the crown adjustment lines, setup is a breeze—no rulers required.
- 38mm chassis designed to meet the needs of the world’s fastest racers with balanced stiffness and ride quality
- DebonAir+ twin tube air spring strikes the perfect balance between butter-smooth small bump feel, added support throughout the travel, and taller ride height for confidence when things get steep
- Signature colorway BoXXer Electric Red with an all-new graphics package
- RockShox premium fender compatibility (RockShox Bolt-On Fender included with purchase)
- Lightweight machined and anodized crown for premium looks and durability
- Crown height gradient creates a visual guide to simplify setup, no ruler required
- Charger 3 damper tuned for BoXXer’s updated chassis and spring. Featuring High Speed Compression, Low Speed Compression, and a revamped Low Speed Rebound, every click is meaningful and exact. This allows the rider to tune to perfection with every click.
- ButterCups block 20% of high-frequency “trail chatter” to reduce hand and arm fatigue, leaving you feeling fresh with more control
- Ultra-low-friction SKF wiper seals provide long-lasting fork performance and improve overall suspension feel
- Maxima Plush damping fluid reduces friction and silences damper noise
- Maxima Plush Dynamic Suspension Lube reduces friction, lasts longer, and enhances suspension performance ride after ride
MODEL ID: FS-BXR-ULT-D1
SPECIFICATIONS
WHEEL SIZE: 27.5", 29"
TRAVEL (MM): 200mm
DAMPER TYPE: Charger 3 RC2 W/ButterCups
FORK OFFSET: 44mm (27.5"), 48mm (27.5"), 48mm (29"), 52mm (29")
COLOuR (FS): BoXXer Electric Red
E-BIKE APPROVED: E-bike Approved
STEERER: 1-1/8" Aluminum
AXLE: 20x110mm BOOST™
UPPER TUBE TYPE: 38mm aluminum
DAMPER ADJUST: Crown
VOLUME REDUCER: 0/6 Tokens, 1/6 Tokens
SPRING: DebonAir+ W/ButterCups
MAXIMUM TIRE WIDTH (MM): 81
MAXIMUM ROTOR SIZE: 220mm
MINIMUM ROTOR SIZE: 200mm
FENDER COMPATIBILITY: Bolt On - Short
WEIGHT (G): 2880
WEIGHT BASED ON: 200mm, Short Crown (Weights same for 27.5" and 29")
Redesigned by the world’s fastest racers, for the world’s fastest racers, you want BoXXer in your corner. The 38mm chassis is equipped with the DebonAir+ twin tube air spring that will have you thinking it’s a coil. Paired with a Charger 3 RC2 damper tuned for downhill speed, BoXXer Ultimate takes you straight to the top step of the podium. And with the crown adjustment lines, setup is a breeze—no rulers required.
- 38mm chassis designed to meet the needs of the world’s fastest racers with balanced stiffness and ride quality
- DebonAir+ twin tube air spring strikes the perfect balance between butter-smooth small bump feel, added support throughout the travel, and taller ride height for confidence when things get steep
- Signature colorway BoXXer Electric Red with an all-new graphics package
- RockShox premium fender compatibility (RockShox Bolt-On Fender included with purchase)
- Lightweight machined and anodized crown for premium looks and durability
- Crown height gradient creates a visual guide to simplify setup, no ruler required
- Charger 3 damper tuned for BoXXer’s updated chassis and spring. Featuring High Speed Compression, Low Speed Compression, and a revamped Low Speed Rebound, every click is meaningful and exact. This allows the rider to tune to perfection with every click.
- ButterCups block 20% of high-frequency “trail chatter” to reduce hand and arm fatigue, leaving you feeling fresh with more control
- Ultra-low-friction SKF wiper seals provide long-lasting fork performance and improve overall suspension feel
- Maxima Plush damping fluid reduces friction and silences damper noise
- Maxima Plush Dynamic Suspension Lube reduces friction, lasts longer, and enhances suspension performance ride after ride
MODEL ID: FS-BXR-ULT-D1
SPECIFICATIONS
WHEEL SIZE: 27.5", 29"
TRAVEL (MM): 200mm
DAMPER TYPE: Charger 3 RC2 W/ButterCups
FORK OFFSET: 44mm (27.5"), 48mm (27.5"), 48mm (29"), 52mm (29")
COLOuR (FS): BoXXer Electric Red
E-BIKE APPROVED: E-bike Approved
STEERER: 1-1/8" Aluminum
AXLE: 20x110mm BOOST™
UPPER TUBE TYPE: 38mm aluminum
DAMPER ADJUST: Crown
VOLUME REDUCER: 0/6 Tokens, 1/6 Tokens
SPRING: DebonAir+ W/ButterCups
MAXIMUM TIRE WIDTH (MM): 81
MAXIMUM ROTOR SIZE: 220mm
MINIMUM ROTOR SIZE: 200mm
FENDER COMPATIBILITY: Bolt On - Short
WEIGHT (G): 2880
WEIGHT BASED ON: 200mm, Short Crown (Weights same for 27.5" and 29")
Original: $2,765.00
-65%$2,765.00
$967.75Description
Redesigned by the world’s fastest racers, for the world’s fastest racers, you want BoXXer in your corner. The 38mm chassis is equipped with the DebonAir+ twin tube air spring that will have you thinking it’s a coil. Paired with a Charger 3 RC2 damper tuned for downhill speed, BoXXer Ultimate takes you straight to the top step of the podium. And with the crown adjustment lines, setup is a breeze—no rulers required.
- 38mm chassis designed to meet the needs of the world’s fastest racers with balanced stiffness and ride quality
- DebonAir+ twin tube air spring strikes the perfect balance between butter-smooth small bump feel, added support throughout the travel, and taller ride height for confidence when things get steep
- Signature colorway BoXXer Electric Red with an all-new graphics package
- RockShox premium fender compatibility (RockShox Bolt-On Fender included with purchase)
- Lightweight machined and anodized crown for premium looks and durability
- Crown height gradient creates a visual guide to simplify setup, no ruler required
- Charger 3 damper tuned for BoXXer’s updated chassis and spring. Featuring High Speed Compression, Low Speed Compression, and a revamped Low Speed Rebound, every click is meaningful and exact. This allows the rider to tune to perfection with every click.
- ButterCups block 20% of high-frequency “trail chatter” to reduce hand and arm fatigue, leaving you feeling fresh with more control
- Ultra-low-friction SKF wiper seals provide long-lasting fork performance and improve overall suspension feel
- Maxima Plush damping fluid reduces friction and silences damper noise
- Maxima Plush Dynamic Suspension Lube reduces friction, lasts longer, and enhances suspension performance ride after ride
MODEL ID: FS-BXR-ULT-D1
SPECIFICATIONS
WHEEL SIZE: 27.5", 29"
TRAVEL (MM): 200mm
DAMPER TYPE: Charger 3 RC2 W/ButterCups
FORK OFFSET: 44mm (27.5"), 48mm (27.5"), 48mm (29"), 52mm (29")
COLOuR (FS): BoXXer Electric Red
E-BIKE APPROVED: E-bike Approved
STEERER: 1-1/8" Aluminum
AXLE: 20x110mm BOOST™
UPPER TUBE TYPE: 38mm aluminum
DAMPER ADJUST: Crown
VOLUME REDUCER: 0/6 Tokens, 1/6 Tokens
SPRING: DebonAir+ W/ButterCups
MAXIMUM TIRE WIDTH (MM): 81
MAXIMUM ROTOR SIZE: 220mm
MINIMUM ROTOR SIZE: 200mm
FENDER COMPATIBILITY: Bolt On - Short
WEIGHT (G): 2880
WEIGHT BASED ON: 200mm, Short Crown (Weights same for 27.5" and 29")















