Spoke Nipples

What is a spoke nipple and what is its main purpose?

The nipple is the nut of the spoke. It sits in the rim bed and allows tensioning of the spoke. Without intact nipples, there are no straight Wheels.

How is a spoke nipple constructed?

Head

The wide part that rests in the rim hole.

Shaft

Contains the thread and the square interface for the spoke key.

What types of spoke nipples are there?

They are mainly distinguished by material (Alloy/Brass) and length. Long nipples (16mm) are now standard for double-wall rims as they protrude better from the rim and are easier to tension.

What materials are used for spoke nipples?

Brass

The standard. Very robust, threads do not seize. Slightly heavier.

Aluminum (Alloy)

Lightweight tuning. Saves rotating mass. Allows many anodized colors. More sensitive during installation (use good tools!).

Which spoke nipple is the right one for my needs?

How do I install spoke nipples?

1. Insert the nipple through the rim.
2. Screw onto the spoke.
3. Tighten with a suitable Spoke Key.

How do I maintain and care for spoke nipples?

• Keep them clean.
• For alloy nipples: Avoid salt (corrosion).

How do I identify and fix common spoke nipple problems?

• Rounded Square: Wrong tool used -> Replace nipple.
• Sheared Head: Too much tension -> Replace nipple.

What do the specifications mean?