Which axle do I need? Measure the axle from the stop to the end of the thread. This is the axle length. Now measure/read the thread pitch and you can select the corresponding thru axle. You can now also use our form at https://www.vitelli.ch?achsen-finder to define the correct axle.
Article no. KID633.O from Robert Axle is article no. KID233.O at Vitelli.
