The Burley Ballz Nutted Axle Adapter includes a set of threaded Ballz that replace the nuts on your current nutted axle, enabling compatibility with the Coho XC cargo trailer. This adapter is required to use the Coho XC on bikes with nutted axles.

– Official Burley Ballz adapter for bikes with nutted axles
– Two Burley Ballz that thread onto the existing nutted axle
– Quick and easy one-time installation
– Specially designed for use with the Coho XC