*RUNWELL* rack nut 2pcs (black)

RUNWELL, a Japanese handmade tool brand from Tsubame-Sanjo the Japan's manufacturing hub of metalware.

The “ELITE HUB NUT” with washer is designed with three key points in mind: proper fixing force, wrench fit, and aesthetics.

It achieves the industry's lightest weight while boasting one of the highest numbers of threads.
More threads = tight fixing, less loosening.

The hub nut head features a wide taper for smooth wrench engagement.
It was designed to fit frames where the fork end is recessed or has a protruding tab, making nut installation difficult or impossible.

They have repeatedly conducted 24-hour salt spray tests to validate and adopt a surface treatment method that is highly rust-resistant and does not damage the nut threads.

A masterpiece combining design and durability, with a proven track record of use in the Olympics and World Championships.