Old Man Mountain

Rear Fit Kit, SET817 12mm,1.0x154-167mm

The Old Man Mountain Rear Fit Kit (SET817) is a complete hardware solution for riders running a 12mm thru-axle rear end who need the correct axle and interface parts to mount compatible Old Man Mountain rear rack systems cleanly and securely. With the included axle, frame pucks, and mounting hardware, this kit streamlines setup on modern thru-axle frames and helps ensure proper alignment at the dropout interface.

• Complete rear fit kit - Includes thru axles, frame pucks, and hardware for a single-box installation
• 12mm x 1.0 thread pitch - Built for frames requiring a 12mm rear thru-axle with 1.0 pitch threads
• Axle length range: 154–167mm - Targets bikes that fall within this rear thru-axle length window for correct fit at the dropouts
• Frame puck interface - Provides the dedicated contact points needed to mate rack hardware to a thru-axle frame without improvised spacers
• Designed, tested, and made in Bend, Oregon - Sourced from a brand known for off-road and bikepacking rack mounting solutions