Ritchey Apex & Zeta WCS Freehub Body (SRAM XD)
Ritchey Apex & Zeta WCS Freehub Body (SRAM XD), Ritchey XD Driver Freehub Body designed for the Apex and Zeta WCS wheels. Note: XD drivers are only compatible with XD cassettes, not XDR cassettes. Specifications: Compatibility: Ritchey Apex and Zeta WCS wheels Freehub Body: XD