Old Man Mountain Seatpost Clamp Mount – One Size Fits All

Add versatility to your rack setup with the Old Man Mountain Seatpost Clamp Mount — a clever solution for bikes without traditional rack eyelets or seatstay mounts. Designed for seamless compatibility with all Old Man Mountain racks, it provides a strong, secure upper attachment point for almost any bike.

Why you’ll love it

Universal fit: Works with most seatposts (27.2 mm to 31.8 mm).

Compatible with all Old Man Mountain racks: Ideal for Divide, Elkhorn, and other models.

Precision-machined aluminium: Lightweight, durable, and built for rough adventures.

Secure mounting: Keeps your rack stable even under heavy loads.

Easy installation: Mounts quickly with included hardware — no frame eyelets required.

Perfect for modern gravel, carbon, and full-suspension bikes where traditional rack mounts aren’t an option — a rugged upgrade for riders who want to carry more, anywhere.