Titanium Six-Bolt Rotor Screws: Weight Safety and Center Lock Alternative

If your bike uses six-bolt disc rotors, each rotor is held on by six small screws. That is twelve screws total, front and rear. Most riders never think about them, but they are one of the easiest places on a bike to save weight with a titanium upgrade. Here is what to know before you make the swap.

How Six-Bolt Rotors Work

The six-bolt standard is the most common rotor mounting system on bicycles. Six M6 screws thread into the hub flange and clamp the rotor in place. The other major standard is center lock, which uses a single lock ring instead of screws. If you have six-bolt hubs, you need six-bolt rotor screws. There is no way around it.

What Titanium Rotor Screws Weigh

TiNE Tech titanium six-bolt rotor screws weigh 1.3g per screw, 7.8g per rotor (six screws), and 15.6g for a full front and rear set. They are CNC machined from Grade 5 Ti-6Al-4V titanium and available in eight anodized colors with custom color options on request.

Without naming a specific original equipment weight, the practical comparison is this: steel rotor screws are noticeably heavier than titanium equivalents. The weight difference is measurable on a scale and adds up when you consider both wheels. Whether that difference matters to you depends on how weight-conscious your build is.

Are Titanium Screws Safe for Rotors?

This is the question most riders ask, and it is a fair one.Rotor screws do not carry shear load in the way that structural fasteners do. Their job is to hold the rotor flat against the hub face. The friction between the rotor and the hub surface, created by clamping force, is what actually drives the rotor. Titanium has a lower shear strength than steel, but for this application, Grade 5 Ti-6Al-4V is more than adequate.

The key is proper torque. Rotor screws are small fasteners, and overtightening or undertightening both cause problems. Use a torque wrench and follow the manufacturer specification for your hub and rotor combination.

What About Center Lock Hubs?

If your hubs use the center lock standard, you do not need rotor screws at all. Center lock uses a single lock ring. TiNE Tech offers titanium center lock lock rings in two versions, an outer type and an inner type, depending on your hub and rotor setup. You choose one or the other. They are not used together.

Color and Customization

One advantage of titanium rotor screws that goes beyond weight is anodized color. TiNE Tech offers eight standard colors: gold, blue, candy, silver, black, pink, green, and rainbow. Custom colors are available on request. If you are color-matching your build, the rotor screws are a visible detail at the hub that ties the wheel finish together.

Who Should Consider the Swap

If you are already running titanium hardware elsewhere on your bike, the rotor screws are a logical addition. They are a small part, but they are a part you can see, and they do not degrade. The titanium screws will not rust, which matters if you ride in wet conditions or wash your bike frequently. For riders building a coordinated color scheme across the whole bike, the hub area is one more place to carry the theme through.