Ensure the MHS DUO tray can transport any type of bike. The MHS Fendered Wheel block holder expands the MHS DUO compatibility to a wider range of bikes including those with front or rear fenders, mudguards, and specialized eBike frames. Simply swap out the existing DUO arm wheel holder on each arm that will secure a wheel with a fender or mudguard. The MHS DUO Fendered Wheel Block Holder holds the wheel below the fender and can be adjusted to fit a variety of bike architectures.