Topeak defender f beam rack ex mtxthis topeak defender fbeam rack exmtx is a simple and effective accessory simply clip to the underside of mtx beamracks to provide extra coverage in wet conditions featureseasy to installprovides protection in wet conditionsdimensions s 31x76x51cm12 2x3x2weight 60gbuytopeak accessoriesfrom chain reaction cycles the worlds largest online bike store