Industry Nine

Rear (IS) Hub Endcap Kit, TA, XD/HG, Hydra

The Industry Nine Hydra Rear Hub Endcap Kit is the correct service part for riders who need to replace worn end caps or convert an I9 Hydra rear hub to match a different through-axle (TA) frame standard—without compromising fit, alignment, or reliability. Built for (IS) International Standard 6-bolt Hydra rear hubs and specified for XD/HG driver configurations, it’s a clean way to keep a high-engagement hub running correctly after a frame change or hard miles.

• Hydra rear hub-specific fit - Designed for Industry Nine Hydra rear hubs to maintain proper hub/frame interface and bearing preload
• Through-axle compatibility - Supports converting or updating axle end-cap hardware to match TA dropouts for correct installation and wheel retention
• (IS) 6-bolt disc standard - Intended for Hydra hubs using the International Standard 6-bolt rotor interface (not Center Lock)
• XD/HG configuration - Spec’d for Hydra rear hub setups associated with XD or HG driver standards for accurate parts matching during service
• Service-friendly refresh - A straightforward swap when end caps are damaged, loose, or mismatched after drivetrain or frame changes