Attaching a GPS device to a sport bike can be tricky businessOur ball clamp can be fastened by means of two clamping bushes in control head pipes with an inside diameter of 12.5 to 25.0 mmThe 1'' ball is compatible with our clamp arm and device holders, as well as socket arm systemsAttachment on head-tubeSuitable for sports bikes1'' ball compatible with socket and device holdersIncluded in delivery1 x Ball clamp for head tubeMounting instructionsMounting material