Centerlock to Six Bolt Adapter — Titanium Lock Ring Step Guide

A centerlock-to-six-bolt adapter lets you mount six-bolt rotors on centerlock hubs. A titanium lock ring does the conversion at roughly half the grams. Step-by-step below.

Step 1: Identify Your Hub Type

Centerlock hubs (Shimano, most DT Swiss) use a spline interface — the rotor slides on and a lock ring secures it. Six-bolt hubs (SRAM, Hope) use six M5 bolts. If your hub has a spline but your rotor has six bolt holes, you need an adapter.

Step 2: Choose the Lock Ring

The adapter is the centerlock lock ring — it secures a centerlock rotor directly or a six-bolt adapter bracket. Stock steel lock rings weigh roughly 10–12g. TiNE titanium versions:

Step 3: Install and Verify

For direct centerlock: slide the rotor onto the spline, thread the TiNE inner lock ring, tighten with a Shimano TL-LR15 lock ring tool or a compatible spanner. For six-bolt conversion: mount the adapter bracket on the spline first, then secure with the TiNE outer lock ring. Spin the wheel — any rub means re-seat the rotor. A light film of grease on the spline threads helps prevent seizing over wet-season riding.

TiNE centerlock titanium lock rings at tinetech.com