X-LAB AD9 / RT9 XDR Driver Body with End Cap | SRAM XDR Freehub Replacement
X-LAB AD9 / RT9 XDR Driver Body with End Cap
Genuine OEM X-LAB replacement freehub body designed for the flagship AD9 aero road bike and RT9 lightweight climbing bike.
The X-LAB AD9 / RT9 XDR Driver Body is the factory replacement freehub for the Branta carbon wheelsets found on X-LAB's top-tier road bikes. Whether you're replacing a worn freehub body or converting your wheelset for SRAM's latest road drivetrains, this genuine OEM component restores factory performance and compatibility.
Designed around the SRAM XDR freehub standard, this driver body supports modern 12-speed SRAM road and gravel cassettes, including RED AXS, Force AXS, Rival AXS, and XPLR drivetrains. The XDR interface allows the use of 10-tooth starting cassettes while maintaining the spacing required for modern road wheelsets.
Manufactured specifically for the AD9 and RT9 rear hubs, this replacement includes the matching drive-side end cap for a complete installation. It's the correct solution for servicing premium X-LAB wheelsets while maintaining smooth engagement and reliable drivetrain performance.
Key Features
- Genuine X-LAB replacement freehub body
- Designed for X-LAB AD9 and RT9 wheelsets
- Compatible with SRAM XDR road and gravel cassettes
- Supports modern 12-speed SRAM drivetrains
- Precision-machined for smooth cassette engagement
- Includes matching drive-side end cap
- OEM replacement component
Why Riders Choose the XDR Driver Body
- Factory replacement for damaged or worn freehub bodies
- Supports SRAM RED AXS, Force AXS, Rival AXS, and XPLR drivetrains
- Maintains crisp hub engagement and shifting performance
- Simple installation using original X-LAB hub components
- Perfect for drivetrain upgrades and wheel maintenance
Technical Specifications
- Brand: X-LAB
- Compatible Bikes: X-LAB AD9 & RT9
- Driver Standard: SRAM XDR
- Cassette Compatibility: SRAM XDR Road & Gravel Cassettes
- Includes: XDR Driver Body and Matching End Cap
- Manufacturer Part Number: 9303-00201
Ideal For
- X-LAB AD9 replacement parts
- X-LAB RT9 replacement parts
- SRAM RED AXS builds
- SRAM Force AXS builds
- SRAM Rival AXS builds
- SRAM XPLR gravel drivetrains
- Road bike drivetrain upgrades
- Wheel maintenance and service
Before You Buy
- This driver body is designed specifically for compatible X-LAB AD9 and RT9 rear hubs.
- Includes one XDR driver body and one matching drive-side end cap.
- Compatible with SRAM XDR road and gravel cassettes.
- Not compatible with Shimano HG, Shimano Microspline, or Campagnolo cassettes.
- Professional installation is recommended when servicing hub bearings or ratchet mechanisms at the same time.
The X-LAB AD9 / RT9 XDR Driver Body is the genuine OEM replacement for riders who demand factory-level performance from their premium carbon wheelsets. Whether replacing a worn freehub or upgrading to a SRAM XDR drivetrain, this component delivers the precise fit and reliability expected from X-LAB's flagship bicycles. The AD9 is X-LAB's WorldTour-proven aero race bike, while the RT9 is its lightweight climbing platform, and both utilize premium Branta wheel technology.