Giant contact slr stem is an ultra light full composite construction stem with 318mm clamp diameter and a huge 46mm clamping area featuring titanium hardware includes shim for 286mm steerer tubefeatures ultra light full composite construction 318mm diameter with shim for 286mm steerer tube 318mm clamp diameter with 46mm handlebar clamping area flip flop 8 adjustable rise recessed top cap and semi integrated first spacer for increased steerer tube interface titanium hardware wei