RockShox BoXXer Ultimate D1 DebonAir+ twin tube air fork
All-new 38mm chassis equipped with the DebonAir+ twin tube air spring that will have you thinking it’s a coil
- 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.
- NEW Signature colorway BoXXer Electric Red with an all-new graphics package.
- Premium fender compatibility (RockShox Bolt-On Fender included with purchase)
- Short and tall crown options available to accommodate different head tube lengths.
- 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.
- ButterCups block 20% of high-frequency “trail chatter” to reduce hand and arm fatigue
- SRAM Model ID: FS-BXR-ULT-D1
Attributes
| Axle/Hub spacing | 20x110mm Boost TA |
| Brake Type | Disc |
| Crown Material | Aluminum |
| Damping | Charger 3 RC2 W/ButterCups |
| Damping Adjustments | External begin stroke rebnd, low speed comp, high speed comp |
| e-Bike approved | Yes |
| Lower Tubes Material | Magnesium |
| Maximum Rotor Size | 220mm |
| Maximum Tire Width | 81mm |
| Spring Adjustments | Air pressure, Bottomless tokens |
| Spring Type | DebonAir+ W/ButterCups |
| Stanchions Diameter | 38mm |
| Stanchions Material | Aluminum |
| Steerer Tube | 1-1/8'' |
| Steerer Tube Material | Aluminum |
| Travel | 200mm |
