Attach a GoPro housing (the type with hinge plates) to a Topeak Explorer bicycle rack. The 3-hole pattern of the Explorer rack has been carefully tailored. Any
...Plus Topeak sliding trunk bag will clear above with the GoPro installed, while any tire will clear below due to a greater diametrical clearance from the axis than that of the bottom of rack. GoPro can also pivot a wide arc. June 2015 version2 stronger.
