Selection Guide

How to find out your thread size

If you are having problems determining the thread size you need, you can also find this in your bike's operating instructions. You will usually find information there about your rear wheel and the hexagon nut bolted to it. The thread size of the hex nut should be identical to the thread size of the adapter.

You can also measure the outer diameter of your rear wheel axle using a caliper gauge, as shown in the diagram below. Please make sure that you always measure the circular geometry of the axle. Some axles still have a parallel wrench attachment at the end of the axle.

The following outside diameters correspond to these thread sizes:

ø9.3mm - ø9.4mm: FG 9.5 (3/8" x 26)
ø9.7mm - ø9.8mm: M10 x 1.00
ø10.3mm - ø10.4mm: FG 10.5 (13/32" x 26)
ø11.8mm - ø11.9mm: M12

Thread pitch of your bike axle

You can also determine the thread pitch of your rear wheel axle using a caliper gauge. Measure at least 5 thread pitches, as shown in the following diagram.

Then divide the determined length x by 5 or the number of measured thread pitches.

Example

Determined dimension x of 5 pitches is 6.25mm - thread pitch corresponds to 1.25
Determined dimension x of 5 pitches is 5.00mm - thread pitch corresponds to 1.00

How to find out the installation length and thread size (pitch) of your thru axle

Each of our thru axles is custom-made for you.

We need the exact installation length and thread size (pitch) of your currently installed thru axle.

To do this, please proceed as follows:

Download our measurement template for thru axles.
Print out the template on DIN A4 landscape format at a scale of 1:1 (100% or actual size).
Now place your removed thru axle on the printed measuring template as shown in the diagram and determine your installation length and thread size (pitch).
Now select the thru axle with the thread size (pitch) you have determined.
You can select the installation length you have measured in the drop-down menu of the respective thru axle.