The deda zero 1 stem deda aim for great performance at an affordable price point that is what you get with the zero1 stem complete the set with rhm 01 bars and rsx 01 seatpost 6061 light alloy 3d forged embossed d logo reversible graphics deda zero 1 stem features material alloy 6061 3d forged clamp height 41 5mm handlebar 31 7mm screws crmo angle 84deg weight 145g 110mm