Adapt the Full Nelson 2-Bike Truck Bed V-Rack for use over a truck bed tonneau cover with c-channel slots.  Includes two Tonneau Adapter Plates and 1in C-Channel Mounting Hardware.

Compatible tonneau covers include:

Truck Hero Trax Rail System
Truck Hero Elevate TS Rail System
Pace Edwards Ultra-Groove
Rock-N-Lock Series, M, A, & ST
Power-Trax XR
Leer Ultragroove & Explorer Side Rails
Retrax
& more!