Before you fit our quick-release axle with interchangeable system, you must determine whether your bike is approved for trailer use. Check the operating instructions for your bike, ask the manufacturer or ask a bike dealer.

The towing bike must be approved for trailer operation. Riding the trailer with a towing bike that has not been approved by the manufacturer can lead to frame breakage or other material problems. This can result in accidents with life-threatening injuries.

If you are not sure how to fit our thru axle with interchangeable system correctly, please contact a specialist workshop.

Our quick-release axle with interchangeable system must be fitted correctly. An incorrectly fitted quick-release axle with interchangeable system can come loose while riding and lead to accidents with life-threatening injuries.

You should definitely bear this in mind: 

• Our thru axles with interchangeable system are only approved for bicycles and pedelecs (max. 25 km/h), not for S-pedelecs or e-bikes from 25 km/h!

• We would like to point out to all dealers and end users that they themselves are responsible for the entire bicycle trailer system and its correct functioning in terms of product liability!

• It is your responsibility to determine the correct thread size and installation length [mm] of your current thru axle on the wheel. Do not attempt to fit our thru axle with interchangeable system in a different thread size in your rear wheel hub. An incorrect thread size can damage your bike. If you are unsure about the correct thread size and installation length, please contact us by email or phone and we will be happy to help you. 

• cannot be used with bikes made of carbon or with carbon dropouts and carbon rear triangle!

• Regularly check the correct torque setting and that all components are free of play before using your bike in trailer mode!

• If you do not have a calibrated torque wrench for fitting our thru axle with interchangeable system, contact a specialist workshop.

with adapter Universal M12 x 1.25 - suitable for Thule, Qeridoo, Burley, Hamax and many others

with adapter for Croozer M12 x 1.25 - suitable for all models from 2018 onwards

with adapter with polygon M12 x 1.25 - suitable for Weber couplings type: E - EL - ES

The corresponding adapters must be ordered separately in our store and are not part of the thru axle.

You can always recognize thru axles with the Syntace system (X-12) by the tapered shape on the head of your thru axle, as shown in the following graphic.

Each of our thru axles is made individually for you. We need the exact installation length of your currently installed thru axle.