Parts & Accessories

Thule's Bike Trailer Thru-Axle Adapters replace your 12mm rear thru-axle to let you connect your bike trailer to the bicycle.

Required attachment for Trek MT-201 trailer bikes. Genuine replacement parts. - Perfect for adding an attachment option to a second bike. - Fits hitch heads from 2004+ (30mm) - Includes multiple shims to fit most all seatpost sizes - Installation tool included