Industry Nine

Rear Drive-Side End Cap, 12mm, XD/HG, Hydra, 1/1

The Industry Nine Rear Drive-Side End Cap is a precise, factory-fit axle interface part for Industry Nine Hydra and 1/1 rear hubs, built to run a 12mm thru-axle on the drive side. It’s the right solution when a hub needs a clean replacement end cap or when updating axle compatibility for a frame swap—without compromising alignment, bearing support, or ease of service.

• Hydra / 1/1 rear hub compatibility - Correct fitment for Industry Nine rear hubs using the Hydra or 1/1 platform
• Drive-side specific end cap - Restores the proper axle interface on the cassette side for consistent wheel installation and secure seating in the dropout
• 12mm thru-axle standard - Supports modern rear frame compatibility for common 12mm thru-axle setups
• XD/HG driver fitment - Designed for use with hubs configured with either XD or HG driver systems (end cap fitment matched to driver configuration)
• OEM-style service part - Straightforward way to replace a worn, damaged, or missing end cap and keep a high-end hub running correctly