The Service Course 70 Ergo packs a powerful punch of everything youd want in a bara design based on feedback from pro bike fitters and pro riders, an ergonomic top section, and a price youll love. The bar features a contoured top for a natural ergonomic grip on the bar tops for all-day comfort. The Service Course 70 Ergos specially tuned drop shape creates comfortable hand positions with the short reach to control levers vital for race situations. The bars 70mm reach (the horizontal distance from the bars stem clamp area to the center of the brake perch) is the shortest of Zipps Service Course lineup. Its 128mm drop (vertical distance from the bars stem clamp area to the bottom of the drops) places the rider low and in control without compromising comfort. Item Specifications Accessory Mount Diameter 31.8 Bar Clamp Diamet