Find new horizons and discover new trails when you hitch your bike to a Coho XC cargo trailer using the Coho Nutted Axle Adapter. Available in multiple thread pitches, simply replace the nuts on your bike's current nutted axle with the Coho Nutted Axle Adapter and you're ready to hit the trail. Note: The Coho Nutted Axle Adapter is required for any bike with nutted axles to connect to the Coho XC.