The Zero100 handlebars are just about The most reliable and classic handlebars out on the market today. Made to the same tried and tested RHM shape as their top end alanera bar, It ensures comfort, and Speed of movement, whether you're on the drops or on the flats. these bars feature a drilled entry hole for installation of Di2 bar-end junction box. tech specs finish: Black On Black (Bob), Black anodised shape: RHM (rapid hand movement) material: triple Butted alloy 7075 handlebar diameter: 31. 7Mm reach: 75mm drop: 130mm di2 compatible weight: 248G (42cm outside to Outside).