Van Nicholas Rohloff Drop Bars - 31.8mm Clamp - Black

I recommend this product

The Van Nicholas Rohloff drop bars are commendably stiff, the bends are comfortable and the Rohloff twist shifter is comfortable to use with easy, positive shifting.

Rohloff shifters are designed for MTB handlebars which have a diameter of 22.2mm but road bike brake levers come with a band clamp sized for the road bike standard handlebar diameter of 23.8mm in the grip area. Van Nicholas provide pieces of self adhesive non-slip to pack out the 1.6mm gap between the bars and the shifter band clamp (Shimano Ultegra Di2 in my case). The self adhesive non-slip is very difficult to fit between the bars and the shifter band clamp because of the compound curve of the drops and doesn't want to stay in place despite the adhesive. After some trial and error I found a combination of .25mm brass shim cut to size and a specially machined washer under the band clamp in-hex bolt worked well. This allowed the levers to be repositioned yet bolt up firmly.